Home / 145,850.08-218,691.60-86,727.04

Finding the Fourth Proportional to 145,850.08, 218,691.60 and 86,727.04

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Solution

The fourth proportional to 145,850.08, 218,691.60 and 86,727.04 is: 130,040.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,850.08 : 218,691.60 = 86,727.04 : x
  2. Step 2: Convert to fraction form
    145,850.08/218,691.60 = 86,727.04/x
  3. Step 3: Cross multiply
    145,850.08x = 218,691.60 × 86,727.04
  4. Step 4: Simplify right side
    145,850.08x = 18,966,475,140.86
  5. Step 5: Solve for x
    x = 18,966,475,140.86/145,850.08
  6. Step 6: Final answer
    x = 130,040.90

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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.