Home / 129,934.50-179,309.61-70,318.50

Finding the Fourth Proportional to 129,934.50, 179,309.61 and 70,318.50

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Solution

The fourth proportional to 129,934.50, 179,309.61 and 70,318.50 is: 97,039.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,934.50 : 179,309.61 = 70,318.50 : x
  2. Step 2: Convert to fraction form
    129,934.50/179,309.61 = 70,318.50/x
  3. Step 3: Cross multiply
    129,934.50x = 179,309.61 × 70,318.50
  4. Step 4: Simplify right side
    129,934.50x = 12,608,782,810.79
  5. Step 5: Solve for x
    x = 12,608,782,810.79/129,934.50
  6. Step 6: Final answer
    x = 97,039.53

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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.