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Finding the Fourth Proportional to 76,375.40, 114,465.90 and 68,016.20

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Solution

The fourth proportional to 76,375.40, 114,465.90 and 68,016.20 is: 101,937.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,375.40 : 114,465.90 = 68,016.20 : x
  2. Step 2: Convert to fraction form
    76,375.40/114,465.90 = 68,016.20/x
  3. Step 3: Cross multiply
    76,375.40x = 114,465.90 × 68,016.20
  4. Step 4: Simplify right side
    76,375.40x = 7,785,535,547.58
  5. Step 5: Solve for x
    x = 7,785,535,547.58/76,375.40
  6. Step 6: Final answer
    x = 101,937.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.