Home / 136,121.92-187,852.61-75,695.11

Finding the Fourth Proportional to 136,121.92, 187,852.61 and 75,695.11

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Solution

The fourth proportional to 136,121.92, 187,852.61 and 75,695.11 is: 104,461.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,121.92 : 187,852.61 = 75,695.11 : x
  2. Step 2: Convert to fraction form
    136,121.92/187,852.61 = 75,695.11/x
  3. Step 3: Cross multiply
    136,121.92x = 187,852.61 × 75,695.11
  4. Step 4: Simplify right side
    136,121.92x = 14,219,523,697.34
  5. Step 5: Solve for x
    x = 14,219,523,697.34/136,121.92
  6. Step 6: Final answer
    x = 104,461.68

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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.