Home / 145,254.88-217,575.92-66,435.36

Finding the Fourth Proportional to 145,254.88, 217,575.92 and 66,435.36

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Solution

The fourth proportional to 145,254.88, 217,575.92 and 66,435.36 is: 99,512.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,254.88 : 217,575.92 = 66,435.36 : x
  2. Step 2: Convert to fraction form
    145,254.88/217,575.92 = 66,435.36/x
  3. Step 3: Cross multiply
    145,254.88x = 217,575.92 × 66,435.36
  4. Step 4: Simplify right side
    145,254.88x = 14,454,734,572.53
  5. Step 5: Solve for x
    x = 14,454,734,572.53/145,254.88
  6. Step 6: Final answer
    x = 99,512.90

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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.