Home / 90,359.14-124,742.82-70,170.70

Finding the Fourth Proportional to 90,359.14, 124,742.82 and 70,170.70

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Solution

The fourth proportional to 90,359.14, 124,742.82 and 70,170.70 is: 96,872.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,359.14 : 124,742.82 = 70,170.70 : x
  2. Step 2: Convert to fraction form
    90,359.14/124,742.82 = 70,170.70/x
  3. Step 3: Cross multiply
    90,359.14x = 124,742.82 × 70,170.70
  4. Step 4: Simplify right side
    90,359.14x = 8,753,290,999.37
  5. Step 5: Solve for x
    x = 8,753,290,999.37/90,359.14
  6. Step 6: Final answer
    x = 96,872.23

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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.