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Finding the Fourth Proportional to 145,854.60, 218,765.70 and 119,513.40

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Solution

The fourth proportional to 145,854.60, 218,765.70 and 119,513.40 is: 179,256.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,854.60 : 218,765.70 = 119,513.40 : x
  2. Step 2: Convert to fraction form
    145,854.60/218,765.70 = 119,513.40/x
  3. Step 3: Cross multiply
    145,854.60x = 218,765.70 × 119,513.40
  4. Step 4: Simplify right side
    145,854.60x = 26,145,432,610.38
  5. Step 5: Solve for x
    x = 26,145,432,610.38/145,854.60
  6. Step 6: Final answer
    x = 179,256.83

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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.