Home / 145,113.52-217,671.36-39,938.28

Finding the Fourth Proportional to 145,113.52, 217,671.36 and 39,938.28

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Solution

The fourth proportional to 145,113.52, 217,671.36 and 39,938.28 is: 59,907.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,113.52 : 217,671.36 = 39,938.28 : x
  2. Step 2: Convert to fraction form
    145,113.52/217,671.36 = 39,938.28/x
  3. Step 3: Cross multiply
    145,113.52x = 217,671.36 × 39,938.28
  4. Step 4: Simplify right side
    145,113.52x = 8,693,419,723.66
  5. Step 5: Solve for x
    x = 8,693,419,723.66/145,113.52
  6. Step 6: Final answer
    x = 59,907.72

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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.