Home / 120,253.55-166,047.98-77,254.38

Finding the Fourth Proportional to 120,253.55, 166,047.98 and 77,254.38

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Solution

The fourth proportional to 120,253.55, 166,047.98 and 77,254.38 is: 106,674.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,253.55 : 166,047.98 = 77,254.38 : x
  2. Step 2: Convert to fraction form
    120,253.55/166,047.98 = 77,254.38/x
  3. Step 3: Cross multiply
    120,253.55x = 166,047.98 × 77,254.38
  4. Step 4: Simplify right side
    120,253.55x = 12,827,933,358.88
  5. Step 5: Solve for x
    x = 12,827,933,358.88/120,253.55
  6. Step 6: Final answer
    x = 106,674.06

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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.