Home / 136,176.57-187,923.65-76,560.57

Finding the Fourth Proportional to 136,176.57, 187,923.65 and 76,560.57

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Solution

The fourth proportional to 136,176.57, 187,923.65 and 76,560.57 is: 105,653.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,176.57 : 187,923.65 = 76,560.57 : x
  2. Step 2: Convert to fraction form
    136,176.57/187,923.65 = 76,560.57/x
  3. Step 3: Cross multiply
    136,176.57x = 187,923.65 × 76,560.57
  4. Step 4: Simplify right side
    136,176.57x = 14,387,541,760.48
  5. Step 5: Solve for x
    x = 14,387,541,760.48/136,176.57
  6. Step 6: Final answer
    x = 105,653.58

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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.