Home / 100,250.07-138,348.05-54,932.06

Finding the Fourth Proportional to 100,250.07, 138,348.05 and 54,932.06

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Solution

The fourth proportional to 100,250.07, 138,348.05 and 54,932.06 is: 75,807.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,250.07 : 138,348.05 = 54,932.06 : x
  2. Step 2: Convert to fraction form
    100,250.07/138,348.05 = 54,932.06/x
  3. Step 3: Cross multiply
    100,250.07x = 138,348.05 × 54,932.06
  4. Step 4: Simplify right side
    100,250.07x = 7,599,742,417.08
  5. Step 5: Solve for x
    x = 7,599,742,417.08/100,250.07
  6. Step 6: Final answer
    x = 75,807.85

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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.