Home / 145,793.32-201,188.31-81,269.58

Finding the Fourth Proportional to 145,793.32, 201,188.31 and 81,269.58

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Solution

The fourth proportional to 145,793.32, 201,188.31 and 81,269.58 is: 112,148.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,793.32 : 201,188.31 = 81,269.58 : x
  2. Step 2: Convert to fraction form
    145,793.32/201,188.31 = 81,269.58/x
  3. Step 3: Cross multiply
    145,793.32x = 201,188.31 × 81,269.58
  4. Step 4: Simplify right side
    145,793.32x = 16,350,488,772.62
  5. Step 5: Solve for x
    x = 16,350,488,772.62/145,793.32
  6. Step 6: Final answer
    x = 112,148.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.