Home / 109,022.70-163,534.05-102,456.30

Finding the Fourth Proportional to 109,022.70, 163,534.05 and 102,456.30

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Solution

The fourth proportional to 109,022.70, 163,534.05 and 102,456.30 is: 153,684.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,022.70 : 163,534.05 = 102,456.30 : x
  2. Step 2: Convert to fraction form
    109,022.70/163,534.05 = 102,456.30/x
  3. Step 3: Cross multiply
    109,022.70x = 163,534.05 × 102,456.30
  4. Step 4: Simplify right side
    109,022.70x = 16,755,093,687.02
  5. Step 5: Solve for x
    x = 16,755,093,687.02/109,022.70
  6. Step 6: Final answer
    x = 153,684.45

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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.