Home / 247,921.28-342,117.48-134,743.28

Finding the Fourth Proportional to 247,921.28, 342,117.48 and 134,743.28

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Solution

The fourth proportional to 247,921.28, 342,117.48 and 134,743.28 is: 185,938.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,921.28 : 342,117.48 = 134,743.28 : x
  2. Step 2: Convert to fraction form
    247,921.28/342,117.48 = 134,743.28/x
  3. Step 3: Cross multiply
    247,921.28x = 342,117.48 × 134,743.28
  4. Step 4: Simplify right side
    247,921.28x = 46,098,031,400.53
  5. Step 5: Solve for x
    x = 46,098,031,400.53/247,921.28
  6. Step 6: Final answer
    x = 185,938.18

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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.