Home / 153,657.42-230,432.82-53,815.40

Finding the Fourth Proportional to 153,657.42, 230,432.82 and 53,815.40

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Solution

The fourth proportional to 153,657.42, 230,432.82 and 53,815.40 is: 80,704.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,657.42 : 230,432.82 = 53,815.40 : x
  2. Step 2: Convert to fraction form
    153,657.42/230,432.82 = 53,815.40/x
  3. Step 3: Cross multiply
    153,657.42x = 230,432.82 × 53,815.40
  4. Step 4: Simplify right side
    153,657.42x = 12,400,834,381.43
  5. Step 5: Solve for x
    x = 12,400,834,381.43/153,657.42
  6. Step 6: Final answer
    x = 80,704.43

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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.