Home / 124,210.80-186,316.20-88,781.40

Finding the Fourth Proportional to 124,210.80, 186,316.20 and 88,781.40

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Solution

The fourth proportional to 124,210.80, 186,316.20 and 88,781.40 is: 133,172.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,210.80 : 186,316.20 = 88,781.40 : x
  2. Step 2: Convert to fraction form
    124,210.80/186,316.20 = 88,781.40/x
  3. Step 3: Cross multiply
    124,210.80x = 186,316.20 × 88,781.40
  4. Step 4: Simplify right side
    124,210.80x = 16,541,413,078.68
  5. Step 5: Solve for x
    x = 16,541,413,078.68/124,210.80
  6. Step 6: Final answer
    x = 133,172.10

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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.