Home / 102,707.18-141,759.58-66,834.91

Finding the Fourth Proportional to 102,707.18, 141,759.58 and 66,834.91

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Solution

The fourth proportional to 102,707.18, 141,759.58 and 66,834.91 is: 92,247.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,707.18 : 141,759.58 = 66,834.91 : x
  2. Step 2: Convert to fraction form
    102,707.18/141,759.58 = 66,834.91/x
  3. Step 3: Cross multiply
    102,707.18x = 141,759.58 × 66,834.91
  4. Step 4: Simplify right side
    102,707.18x = 9,474,488,770.94
  5. Step 5: Solve for x
    x = 9,474,488,770.94/102,707.18
  6. Step 6: Final answer
    x = 92,247.58

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1.5x scale

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.