Home / 121,748.90-182,527.77-77,367.38

Finding the Fourth Proportional to 121,748.90, 182,527.77 and 77,367.38

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Solution

The fourth proportional to 121,748.90, 182,527.77 and 77,367.38 is: 115,990.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,748.90 : 182,527.77 = 77,367.38 : x
  2. Step 2: Convert to fraction form
    121,748.90/182,527.77 = 77,367.38/x
  3. Step 3: Cross multiply
    121,748.90x = 182,527.77 × 77,367.38
  4. Step 4: Simplify right side
    121,748.90x = 14,121,695,342.14
  5. Step 5: Solve for x
    x = 14,121,695,342.14/121,748.90
  6. Step 6: Final answer
    x = 115,990.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.