Home / 98,640.74-136,082.40-60,385.88

Finding the Fourth Proportional to 98,640.74, 136,082.40 and 60,385.88

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Solution

The fourth proportional to 98,640.74, 136,082.40 and 60,385.88 is: 83,306.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,640.74 : 136,082.40 = 60,385.88 : x
  2. Step 2: Convert to fraction form
    98,640.74/136,082.40 = 60,385.88/x
  3. Step 3: Cross multiply
    98,640.74x = 136,082.40 × 60,385.88
  4. Step 4: Simplify right side
    98,640.74x = 8,217,455,476.51
  5. Step 5: Solve for x
    x = 8,217,455,476.51/98,640.74
  6. Step 6: Final answer
    x = 83,306.91

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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.