Home / 138,427.19-207,469.47-98,382.35

Finding the Fourth Proportional to 138,427.19, 207,469.47 and 98,382.35

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Solution

The fourth proportional to 138,427.19, 207,469.47 and 98,382.35 is: 147,451.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,427.19 : 207,469.47 = 98,382.35 : x
  2. Step 2: Convert to fraction form
    138,427.19/207,469.47 = 98,382.35/x
  3. Step 3: Cross multiply
    138,427.19x = 207,469.47 × 98,382.35
  4. Step 4: Simplify right side
    138,427.19x = 20,411,334,011.85
  5. Step 5: Solve for x
    x = 20,411,334,011.85/138,427.19
  6. Step 6: Final answer
    x = 147,451.77

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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.