Home / 98,678.40-147,079.55-93,073.61

Finding the Fourth Proportional to 98,678.40, 147,079.55 and 93,073.61

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Solution

The fourth proportional to 98,678.40, 147,079.55 and 93,073.61 is: 138,725.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,678.40 : 147,079.55 = 93,073.61 : x
  2. Step 2: Convert to fraction form
    98,678.40/147,079.55 = 93,073.61/x
  3. Step 3: Cross multiply
    98,678.40x = 147,079.55 × 93,073.61
  4. Step 4: Simplify right side
    98,678.40x = 13,689,223,474.91
  5. Step 5: Solve for x
    x = 13,689,223,474.91/98,678.40
  6. Step 6: Final answer
    x = 138,725.63

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.