Home / 100,637.76-138,882.96-60,358.08

Finding the Fourth Proportional to 100,637.76, 138,882.96 and 60,358.08

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Solution

The fourth proportional to 100,637.76, 138,882.96 and 60,358.08 is: 83,295.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,637.76 : 138,882.96 = 60,358.08 : x
  2. Step 2: Convert to fraction form
    100,637.76/138,882.96 = 60,358.08/x
  3. Step 3: Cross multiply
    100,637.76x = 138,882.96 × 60,358.08
  4. Step 4: Simplify right side
    100,637.76x = 8,382,708,810.32
  5. Step 5: Solve for x
    x = 8,382,708,810.32/100,637.76
  6. Step 6: Final answer
    x = 83,295.86

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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.