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Finding the Fourth Proportional to 145,689.60, 218,404.80 and 95,793.60

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Solution

The fourth proportional to 145,689.60, 218,404.80 and 95,793.60 is: 143,605.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,689.60 : 218,404.80 = 95,793.60 : x
  2. Step 2: Convert to fraction form
    145,689.60/218,404.80 = 95,793.60/x
  3. Step 3: Cross multiply
    145,689.60x = 218,404.80 × 95,793.60
  4. Step 4: Simplify right side
    145,689.60x = 20,921,782,049.28
  5. Step 5: Solve for x
    x = 20,921,782,049.28/145,689.60
  6. Step 6: Final answer
    x = 143,605.19

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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.