Home / 142,070,786.73-195,949,652.51-122,257,946.56

Finding the Fourth Proportional to 142,070,786.73, 195,949,652.51 and 122,257,946.56

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Solution

The fourth proportional to 142,070,786.73, 195,949,652.51 and 122,257,946.56 is: 168,622,999.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,070,786.73 : 195,949,652.51 = 122,257,946.56 : x
  2. Step 2: Convert to fraction form
    142,070,786.73/195,949,652.51 = 122,257,946.56/x
  3. Step 3: Cross multiply
    142,070,786.73x = 195,949,652.51 × 122,257,946.56
  4. Step 4: Simplify right side
    142,070,786.73x = 23,956,402,145,018,148
  5. Step 5: Solve for x
    x = 23,956,402,145,018,148/142,070,786.73
  6. Step 6: Final answer
    x = 168,622,999.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.