Home / 132,434.48-198,655.32-38,943.20

Finding the Fourth Proportional to 132,434.48, 198,655.32 and 38,943.20

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Solution

The fourth proportional to 132,434.48, 198,655.32 and 38,943.20 is: 58,415.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,434.48 : 198,655.32 = 38,943.20 : x
  2. Step 2: Convert to fraction form
    132,434.48/198,655.32 = 38,943.20/x
  3. Step 3: Cross multiply
    132,434.48x = 198,655.32 × 38,943.20
  4. Step 4: Simplify right side
    132,434.48x = 7,736,273,857.82
  5. Step 5: Solve for x
    x = 7,736,273,857.82/132,434.48
  6. Step 6: Final answer
    x = 58,415.86

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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.