Home / 98,768.72-136,192.20-62,918.48

Finding the Fourth Proportional to 98,768.72, 136,192.20 and 62,918.48

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Solution

The fourth proportional to 98,768.72, 136,192.20 and 62,918.48 is: 86,758.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,768.72 : 136,192.20 = 62,918.48 : x
  2. Step 2: Convert to fraction form
    98,768.72/136,192.20 = 62,918.48/x
  3. Step 3: Cross multiply
    98,768.72x = 136,192.20 × 62,918.48
  4. Step 4: Simplify right side
    98,768.72x = 8,569,006,211.86
  5. Step 5: Solve for x
    x = 8,569,006,211.86/98,768.72
  6. Step 6: Final answer
    x = 86,758.30

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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.