Home / 138,522.63-207,877.36-54,272.22

Finding the Fourth Proportional to 138,522.63, 207,877.36 and 54,272.22

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Solution

The fourth proportional to 138,522.63, 207,877.36 and 54,272.22 is: 81,444.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,522.63 : 207,877.36 = 54,272.22 : x
  2. Step 2: Convert to fraction form
    138,522.63/207,877.36 = 54,272.22/x
  3. Step 3: Cross multiply
    138,522.63x = 207,877.36 × 54,272.22
  4. Step 4: Simplify right side
    138,522.63x = 11,281,965,543.58
  5. Step 5: Solve for x
    x = 11,281,965,543.58/138,522.63
  6. Step 6: Final answer
    x = 81,444.93

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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.