Home / 120,559.68-166,339.26-72,141.93

Finding the Fourth Proportional to 120,559.68, 166,339.26 and 72,141.93

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Solution

The fourth proportional to 120,559.68, 166,339.26 and 72,141.93 is: 99,536.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,559.68 : 166,339.26 = 72,141.93 : x
  2. Step 2: Convert to fraction form
    120,559.68/166,339.26 = 72,141.93/x
  3. Step 3: Cross multiply
    120,559.68x = 166,339.26 × 72,141.93
  4. Step 4: Simplify right side
    120,559.68x = 12,000,035,251.17
  5. Step 5: Solve for x
    x = 12,000,035,251.17/120,559.68
  6. Step 6: Final answer
    x = 99,536.06

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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.