Home / 157,061.75-235,668.23-78,182.87

Finding the Fourth Proportional to 157,061.75, 235,668.23 and 78,182.87

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Solution

The fourth proportional to 157,061.75, 235,668.23 and 78,182.87 is: 117,311.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,061.75 : 235,668.23 = 78,182.87 : x
  2. Step 2: Convert to fraction form
    157,061.75/235,668.23 = 78,182.87/x
  3. Step 3: Cross multiply
    157,061.75x = 235,668.23 × 78,182.87
  4. Step 4: Simplify right side
    157,061.75x = 18,425,218,589.22
  5. Step 5: Solve for x
    x = 18,425,218,589.22/157,061.75
  6. Step 6: Final answer
    x = 117,311.94

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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.