Home / 100,733.79-138,966.03-60,377.49

Finding the Fourth Proportional to 100,733.79, 138,966.03 and 60,377.49

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Solution

The fourth proportional to 100,733.79, 138,966.03 and 60,377.49 is: 83,293.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,733.79 : 138,966.03 = 60,377.49 : x
  2. Step 2: Convert to fraction form
    100,733.79/138,966.03 = 60,377.49/x
  3. Step 3: Cross multiply
    100,733.79x = 138,966.03 × 60,377.49
  4. Step 4: Simplify right side
    100,733.79x = 8,390,420,086.66
  5. Step 5: Solve for x
    x = 8,390,420,086.66/100,733.79
  6. Step 6: Final answer
    x = 83,293.01

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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.