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Finding the Fourth Proportional to 155,230.32, 232,859.52 and 66,463.68

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Solution

The fourth proportional to 155,230.32, 232,859.52 and 66,463.68 is: 99,701.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,230.32 : 232,859.52 = 66,463.68 : x
  2. Step 2: Convert to fraction form
    155,230.32/232,859.52 = 66,463.68/x
  3. Step 3: Cross multiply
    155,230.32x = 232,859.52 × 66,463.68
  4. Step 4: Simplify right side
    155,230.32x = 15,476,700,622.23
  5. Step 5: Solve for x
    x = 15,476,700,622.23/155,230.32
  6. Step 6: Final answer
    x = 99,701.53

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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.