Home / 122,587.06-169,172.70-68,875.54

Finding the Fourth Proportional to 122,587.06, 169,172.70 and 68,875.54

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Solution

The fourth proportional to 122,587.06, 169,172.70 and 68,875.54 is: 95,049.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,587.06 : 169,172.70 = 68,875.54 : x
  2. Step 2: Convert to fraction form
    122,587.06/169,172.70 = 68,875.54/x
  3. Step 3: Cross multiply
    122,587.06x = 169,172.70 × 68,875.54
  4. Step 4: Simplify right side
    122,587.06x = 11,651,861,065.76
  5. Step 5: Solve for x
    x = 11,651,861,065.76/122,587.06
  6. Step 6: Final answer
    x = 95,049.68

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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.