Home / 109,087.80-163,631.70-38,974.20

Finding the Fourth Proportional to 109,087.80, 163,631.70 and 38,974.20

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Solution

The fourth proportional to 109,087.80, 163,631.70 and 38,974.20 is: 58,461.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,087.80 : 163,631.70 = 38,974.20 : x
  2. Step 2: Convert to fraction form
    109,087.80/163,631.70 = 38,974.20/x
  3. Step 3: Cross multiply
    109,087.80x = 163,631.70 × 38,974.20
  4. Step 4: Simplify right side
    109,087.80x = 6,377,414,602.14
  5. Step 5: Solve for x
    x = 6,377,414,602.14/109,087.80
  6. Step 6: Final answer
    x = 58,461.30

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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.