Home / 109,158.85-150,638.99-61,412.25

Finding the Fourth Proportional to 109,158.85, 150,638.99 and 61,412.25

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Solution

The fourth proportional to 109,158.85, 150,638.99 and 61,412.25 is: 84,748.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,158.85 : 150,638.99 = 61,412.25 : x
  2. Step 2: Convert to fraction form
    109,158.85/150,638.99 = 61,412.25/x
  3. Step 3: Cross multiply
    109,158.85x = 150,638.99 × 61,412.25
  4. Step 4: Simplify right side
    109,158.85x = 9,251,079,006.57
  5. Step 5: Solve for x
    x = 9,251,079,006.57/109,158.85
  6. Step 6: Final answer
    x = 84,748.78

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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.