Home / 103,616.50-142,996.02-61,174.12

Finding the Fourth Proportional to 103,616.50, 142,996.02 and 61,174.12

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Solution

The fourth proportional to 103,616.50, 142,996.02 and 61,174.12 is: 84,423.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,616.50 : 142,996.02 = 61,174.12 : x
  2. Step 2: Convert to fraction form
    103,616.50/142,996.02 = 61,174.12/x
  3. Step 3: Cross multiply
    103,616.50x = 142,996.02 × 61,174.12
  4. Step 4: Simplify right side
    103,616.50x = 8,747,655,687.00
  5. Step 5: Solve for x
    x = 8,747,655,687.00/103,616.50
  6. Step 6: Final answer
    x = 84,423.39

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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.