Home / 107,651.76-161,465.10-28,772.16

Finding the Fourth Proportional to 107,651.76, 161,465.10 and 28,772.16

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Solution

The fourth proportional to 107,651.76, 161,465.10 and 28,772.16 is: 43,154.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,651.76 : 161,465.10 = 28,772.16 : x
  2. Step 2: Convert to fraction form
    107,651.76/161,465.10 = 28,772.16/x
  3. Step 3: Cross multiply
    107,651.76x = 161,465.10 × 28,772.16
  4. Step 4: Simplify right side
    107,651.76x = 4,645,699,691.62
  5. Step 5: Solve for x
    x = 4,645,699,691.62/107,651.76
  6. Step 6: Final answer
    x = 43,154.89

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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.