Home / 136,658.15-188,588.53-76,227.23

Finding the Fourth Proportional to 136,658.15, 188,588.53 and 76,227.23

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Solution

The fourth proportional to 136,658.15, 188,588.53 and 76,227.23 is: 105,193.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,658.15 : 188,588.53 = 76,227.23 : x
  2. Step 2: Convert to fraction form
    136,658.15/188,588.53 = 76,227.23/x
  3. Step 3: Cross multiply
    136,658.15x = 188,588.53 × 76,227.23
  4. Step 4: Simplify right side
    136,658.15x = 14,375,581,818.43
  5. Step 5: Solve for x
    x = 14,375,581,818.43/136,658.15
  6. Step 6: Final answer
    x = 105,193.74

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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.