Home / 120,934.98-166,964.96-77,929.65

Finding the Fourth Proportional to 120,934.98, 166,964.96 and 77,929.65

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Solution

The fourth proportional to 120,934.98, 166,964.96 and 77,929.65 is: 107,591.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,934.98 : 166,964.96 = 77,929.65 : x
  2. Step 2: Convert to fraction form
    120,934.98/166,964.96 = 77,929.65/x
  3. Step 3: Cross multiply
    120,934.98x = 166,964.96 × 77,929.65
  4. Step 4: Simplify right side
    120,934.98x = 13,011,521,089.89
  5. Step 5: Solve for x
    x = 13,011,521,089.89/120,934.98
  6. Step 6: Final answer
    x = 107,591.05

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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.