Home / 121,041.40-181,562.10-103,545.40

Finding the Fourth Proportional to 121,041.40, 181,562.10 and 103,545.40

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Solution

The fourth proportional to 121,041.40, 181,562.10 and 103,545.40 is: 155,318.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,041.40 : 181,562.10 = 103,545.40 : x
  2. Step 2: Convert to fraction form
    121,041.40/181,562.10 = 103,545.40/x
  3. Step 3: Cross multiply
    121,041.40x = 181,562.10 × 103,545.40
  4. Step 4: Simplify right side
    121,041.40x = 18,799,920,269.34
  5. Step 5: Solve for x
    x = 18,799,920,269.34/121,041.40
  6. Step 6: Final answer
    x = 155,318.10

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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.