Home / 120,537.76-166,337.28-66,088.78

Finding the Fourth Proportional to 120,537.76, 166,337.28 and 66,088.78

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Solution

The fourth proportional to 120,537.76, 166,337.28 and 66,088.78 is: 91,199.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,537.76 : 166,337.28 = 66,088.78 : x
  2. Step 2: Convert to fraction form
    120,537.76/166,337.28 = 66,088.78/x
  3. Step 3: Cross multiply
    120,537.76x = 166,337.28 × 66,088.78
  4. Step 4: Simplify right side
    120,537.76x = 10,993,027,903.72
  5. Step 5: Solve for x
    x = 10,993,027,903.72/120,537.76
  6. Step 6: Final answer
    x = 91,199.87

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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.