Home / 100,277.96-138,387.42-57,264.46

Finding the Fourth Proportional to 100,277.96, 138,387.42 and 57,264.46

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Solution

The fourth proportional to 100,277.96, 138,387.42 and 57,264.46 is: 79,027.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,277.96 : 138,387.42 = 57,264.46 : x
  2. Step 2: Convert to fraction form
    100,277.96/138,387.42 = 57,264.46/x
  3. Step 3: Cross multiply
    100,277.96x = 138,387.42 × 57,264.46
  4. Step 4: Simplify right side
    100,277.96x = 7,924,680,877.09
  5. Step 5: Solve for x
    x = 7,924,680,877.09/100,277.96
  6. Step 6: Final answer
    x = 79,027.14

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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.