Home / 120,758.52-166,670.40-77,123.04

Finding the Fourth Proportional to 120,758.52, 166,670.40 and 77,123.04

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Solution

The fourth proportional to 120,758.52, 166,670.40 and 77,123.04 is: 106,444.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,758.52 : 166,670.40 = 77,123.04 : x
  2. Step 2: Convert to fraction form
    120,758.52/166,670.40 = 77,123.04/x
  3. Step 3: Cross multiply
    120,758.52x = 166,670.40 × 77,123.04
  4. Step 4: Simplify right side
    120,758.52x = 12,854,127,926.02
  5. Step 5: Solve for x
    x = 12,854,127,926.02/120,758.52
  6. Step 6: Final answer
    x = 106,444.89

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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.