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Finding the Fourth Proportional to 145,902.87, 218,663.57 and 74,765.23

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Solution

The fourth proportional to 145,902.87, 218,663.57 and 74,765.23 is: 112,050.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,902.87 : 218,663.57 = 74,765.23 : x
  2. Step 2: Convert to fraction form
    145,902.87/218,663.57 = 74,765.23/x
  3. Step 3: Cross multiply
    145,902.87x = 218,663.57 × 74,765.23
  4. Step 4: Simplify right side
    145,902.87x = 16,348,431,743.93
  5. Step 5: Solve for x
    x = 16,348,431,743.93/145,902.87
  6. Step 6: Final answer
    x = 112,050.10

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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.