Home / 136,177.57-187,925.03-76,561.57

Finding the Fourth Proportional to 136,177.57, 187,925.03 and 76,561.57

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Solution

The fourth proportional to 136,177.57, 187,925.03 and 76,561.57 is: 105,654.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,177.57 : 187,925.03 = 76,561.57 : x
  2. Step 2: Convert to fraction form
    136,177.57/187,925.03 = 76,561.57/x
  3. Step 3: Cross multiply
    136,177.57x = 187,925.03 × 76,561.57
  4. Step 4: Simplify right side
    136,177.57x = 14,387,835,339.10
  5. Step 5: Solve for x
    x = 14,387,835,339.10/136,177.57
  6. Step 6: Final answer
    x = 105,654.96

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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.