Home / 103,542.40-142,882.32-61,114.24

Finding the Fourth Proportional to 103,542.40, 142,882.32 and 61,114.24

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Solution

The fourth proportional to 103,542.40, 142,882.32 and 61,114.24 is: 84,334.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,542.40 : 142,882.32 = 61,114.24 : x
  2. Step 2: Convert to fraction form
    103,542.40/142,882.32 = 61,114.24/x
  3. Step 3: Cross multiply
    103,542.40x = 142,882.32 × 61,114.24
  4. Step 4: Simplify right side
    103,542.40x = 8,732,144,396.24
  5. Step 5: Solve for x
    x = 8,732,144,396.24/103,542.40
  6. Step 6: Final answer
    x = 84,334.00

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1.5x scale

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.