Home / 103,614.01-155,421.02-68,545.47

Finding the Fourth Proportional to 103,614.01, 155,421.02 and 68,545.47

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Solution

The fourth proportional to 103,614.01, 155,421.02 and 68,545.47 is: 102,818.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,614.01 : 155,421.02 = 68,545.47 : x
  2. Step 2: Convert to fraction form
    103,614.01/155,421.02 = 68,545.47/x
  3. Step 3: Cross multiply
    103,614.01x = 155,421.02 × 68,545.47
  4. Step 4: Simplify right side
    103,614.01x = 10,653,406,863.78
  5. Step 5: Solve for x
    x = 10,653,406,863.78/103,614.01
  6. Step 6: Final answer
    x = 102,818.21

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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.