Home / 129,950.19-179,332.11-76,236.39

Finding the Fourth Proportional to 129,950.19, 179,332.11 and 76,236.39

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Solution

The fourth proportional to 129,950.19, 179,332.11 and 76,236.39 is: 105,206.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,950.19 : 179,332.11 = 76,236.39 : x
  2. Step 2: Convert to fraction form
    129,950.19/179,332.11 = 76,236.39/x
  3. Step 3: Cross multiply
    129,950.19x = 179,332.11 × 76,236.39
  4. Step 4: Simplify right side
    129,950.19x = 13,671,632,677.48
  5. Step 5: Solve for x
    x = 13,671,632,677.48/129,950.19
  6. Step 6: Final answer
    x = 105,206.72

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1.5x scale

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.