Home / 105,613.46-158,042.70-91,737.02

Finding the Fourth Proportional to 105,613.46, 158,042.70 and 91,737.02

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Solution

The fourth proportional to 105,613.46, 158,042.70 and 91,737.02 is: 137,277.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,613.46 : 158,042.70 = 91,737.02 : x
  2. Step 2: Convert to fraction form
    105,613.46/158,042.70 = 91,737.02/x
  3. Step 3: Cross multiply
    105,613.46x = 158,042.70 × 91,737.02
  4. Step 4: Simplify right side
    105,613.46x = 14,498,366,330.75
  5. Step 5: Solve for x
    x = 14,498,366,330.75/105,613.46
  6. Step 6: Final answer
    x = 137,277.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.