Home / 98,824.47-136,398.38-90,854.07

Finding the Fourth Proportional to 98,824.47, 136,398.38 and 90,854.07

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Solution

The fourth proportional to 98,824.47, 136,398.38 and 90,854.07 is: 125,397.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,824.47 : 136,398.38 = 90,854.07 : x
  2. Step 2: Convert to fraction form
    98,824.47/136,398.38 = 90,854.07/x
  3. Step 3: Cross multiply
    98,824.47x = 136,398.38 × 90,854.07
  4. Step 4: Simplify right side
    98,824.47x = 12,392,347,510.14
  5. Step 5: Solve for x
    x = 12,392,347,510.14/98,824.47
  6. Step 6: Final answer
    x = 125,397.56

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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.