Home / 142,022.10-213,033.15-71,892.30

Finding the Fourth Proportional to 142,022.10, 213,033.15 and 71,892.30

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Solution

The fourth proportional to 142,022.10, 213,033.15 and 71,892.30 is: 107,838.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,022.10 : 213,033.15 = 71,892.30 : x
  2. Step 2: Convert to fraction form
    142,022.10/213,033.15 = 71,892.30/x
  3. Step 3: Cross multiply
    142,022.10x = 213,033.15 × 71,892.30
  4. Step 4: Simplify right side
    142,022.10x = 15,315,443,129.75
  5. Step 5: Solve for x
    x = 15,315,443,129.75/142,022.10
  6. Step 6: Final answer
    x = 107,838.45

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1.5x scale

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.