Home / 130,331.17-179,903.33-79,320.61

Finding the Fourth Proportional to 130,331.17, 179,903.33 and 79,320.61

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Solution

The fourth proportional to 130,331.17, 179,903.33 and 79,320.61 is: 109,490.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,331.17 : 179,903.33 = 79,320.61 : x
  2. Step 2: Convert to fraction form
    130,331.17/179,903.33 = 79,320.61/x
  3. Step 3: Cross multiply
    130,331.17x = 179,903.33 × 79,320.61
  4. Step 4: Simplify right side
    130,331.17x = 14,270,041,876.63
  5. Step 5: Solve for x
    x = 14,270,041,876.63/130,331.17
  6. Step 6: Final answer
    x = 109,490.63

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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.