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Finding the Fourth Proportional to 107,363.80, 161,045.70 and 67,965.40

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Solution

The fourth proportional to 107,363.80, 161,045.70 and 67,965.40 is: 101,948.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,363.80 : 161,045.70 = 67,965.40 : x
  2. Step 2: Convert to fraction form
    107,363.80/161,045.70 = 67,965.40/x
  3. Step 3: Cross multiply
    107,363.80x = 161,045.70 × 67,965.40
  4. Step 4: Simplify right side
    107,363.80x = 10,945,535,418.78
  5. Step 5: Solve for x
    x = 10,945,535,418.78/107,363.80
  6. Step 6: Final answer
    x = 101,948.10

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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.