Home / 102,706.18-141,758.20-66,833.91

Finding the Fourth Proportional to 102,706.18, 141,758.20 and 66,833.91

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Solution

The fourth proportional to 102,706.18, 141,758.20 and 66,833.91 is: 92,246.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,706.18 : 141,758.20 = 66,833.91 : x
  2. Step 2: Convert to fraction form
    102,706.18/141,758.20 = 66,833.91/x
  3. Step 3: Cross multiply
    102,706.18x = 141,758.20 × 66,833.91
  4. Step 4: Simplify right side
    102,706.18x = 9,474,254,864.10
  5. Step 5: Solve for x
    x = 9,474,254,864.10/102,706.18
  6. Step 6: Final answer
    x = 92,246.20

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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.