Home / 238,138.38-328,546.53-136,089.45

Finding the Fourth Proportional to 238,138.38, 328,546.53 and 136,089.45

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Solution

The fourth proportional to 238,138.38, 328,546.53 and 136,089.45 is: 187,755.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,138.38 : 328,546.53 = 136,089.45 : x
  2. Step 2: Convert to fraction form
    238,138.38/328,546.53 = 136,089.45/x
  3. Step 3: Cross multiply
    238,138.38x = 328,546.53 × 136,089.45
  4. Step 4: Simplify right side
    238,138.38x = 44,711,716,567.11
  5. Step 5: Solve for x
    x = 44,711,716,567.11/238,138.38
  6. Step 6: Final answer
    x = 187,755.19

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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.