Home / 79,756.56-119,194.18-75,147.45

Finding the Fourth Proportional to 79,756.56, 119,194.18 and 75,147.45

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Solution

The fourth proportional to 79,756.56, 119,194.18 and 75,147.45 is: 112,305.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,756.56 : 119,194.18 = 75,147.45 : x
  2. Step 2: Convert to fraction form
    79,756.56/119,194.18 = 75,147.45/x
  3. Step 3: Cross multiply
    79,756.56x = 119,194.18 × 75,147.45
  4. Step 4: Simplify right side
    79,756.56x = 8,957,138,681.84
  5. Step 5: Solve for x
    x = 8,957,138,681.84/79,756.56
  6. Step 6: Final answer
    x = 112,305.99

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.