Home / 83,236.41-125,125.26-66,776.50

Finding the Fourth Proportional to 83,236.41, 125,125.26 and 66,776.50

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Solution

The fourth proportional to 83,236.41, 125,125.26 and 66,776.50 is: 100,381.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,236.41 : 125,125.26 = 66,776.50 : x
  2. Step 2: Convert to fraction form
    83,236.41/125,125.26 = 66,776.50/x
  3. Step 3: Cross multiply
    83,236.41x = 125,125.26 × 66,776.50
  4. Step 4: Simplify right side
    83,236.41x = 8,355,426,830.38
  5. Step 5: Solve for x
    x = 8,355,426,830.38/83,236.41
  6. Step 6: Final answer
    x = 100,381.87

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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.