Home / 142,358.06-213,534.38-42,518.54

Finding the Fourth Proportional to 142,358.06, 213,534.38 and 42,518.54

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Solution

The fourth proportional to 142,358.06, 213,534.38 and 42,518.54 is: 63,777.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,358.06 : 213,534.38 = 42,518.54 : x
  2. Step 2: Convert to fraction form
    142,358.06/213,534.38 = 42,518.54/x
  3. Step 3: Cross multiply
    142,358.06x = 213,534.38 × 42,518.54
  4. Step 4: Simplify right side
    142,358.06x = 9,079,170,077.41
  5. Step 5: Solve for x
    x = 9,079,170,077.41/142,358.06
  6. Step 6: Final answer
    x = 63,777.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.