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Finding the Fourth Proportional to 107,132.80, 160,699.20 and 89,766.40

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Solution

The fourth proportional to 107,132.80, 160,699.20 and 89,766.40 is: 134,649.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,132.80 : 160,699.20 = 89,766.40 : x
  2. Step 2: Convert to fraction form
    107,132.80/160,699.20 = 89,766.40/x
  3. Step 3: Cross multiply
    107,132.80x = 160,699.20 × 89,766.40
  4. Step 4: Simplify right side
    107,132.80x = 14,425,388,666.88
  5. Step 5: Solve for x
    x = 14,425,388,666.88/107,132.80
  6. Step 6: Final answer
    x = 134,649.60

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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.