Home / 129,769.75-179,082.26-70,153.75

Finding the Fourth Proportional to 129,769.75, 179,082.26 and 70,153.75

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Solution

The fourth proportional to 129,769.75, 179,082.26 and 70,153.75 is: 96,812.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,769.75 : 179,082.26 = 70,153.75 : x
  2. Step 2: Convert to fraction form
    129,769.75/179,082.26 = 70,153.75/x
  3. Step 3: Cross multiply
    129,769.75x = 179,082.26 × 70,153.75
  4. Step 4: Simplify right side
    129,769.75x = 12,563,292,097.48
  5. Step 5: Solve for x
    x = 12,563,292,097.48/129,769.75
  6. Step 6: Final answer
    x = 96,812.18

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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.