Home / 153,877.97-212,387.03-90,236.27

Finding the Fourth Proportional to 153,877.97, 212,387.03 and 90,236.27

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Solution

The fourth proportional to 153,877.97, 212,387.03 and 90,236.27 is: 124,546.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,877.97 : 212,387.03 = 90,236.27 : x
  2. Step 2: Convert to fraction form
    153,877.97/212,387.03 = 90,236.27/x
  3. Step 3: Cross multiply
    153,877.97x = 212,387.03 × 90,236.27
  4. Step 4: Simplify right side
    153,877.97x = 19,165,012,932.40
  5. Step 5: Solve for x
    x = 19,165,012,932.40/153,877.97
  6. Step 6: Final answer
    x = 124,546.83

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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.