Home / 136,061.66-187,780.28-82,376.26

Finding the Fourth Proportional to 136,061.66, 187,780.28 and 82,376.26

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Solution

The fourth proportional to 136,061.66, 187,780.28 and 82,376.26 is: 113,688.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,061.66 : 187,780.28 = 82,376.26 : x
  2. Step 2: Convert to fraction form
    136,061.66/187,780.28 = 82,376.26/x
  3. Step 3: Cross multiply
    136,061.66x = 187,780.28 × 82,376.26
  4. Step 4: Simplify right side
    136,061.66x = 15,468,637,168.15
  5. Step 5: Solve for x
    x = 15,468,637,168.15/136,061.66
  6. Step 6: Final answer
    x = 113,688.43

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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.