Home / 130,388.29-179,929.61-80,077.57

Finding the Fourth Proportional to 130,388.29, 179,929.61 and 80,077.57

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Solution

The fourth proportional to 130,388.29, 179,929.61 and 80,077.57 is: 110,503.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,388.29 : 179,929.61 = 80,077.57 : x
  2. Step 2: Convert to fraction form
    130,388.29/179,929.61 = 80,077.57/x
  3. Step 3: Cross multiply
    130,388.29x = 179,929.61 × 80,077.57
  4. Step 4: Simplify right side
    130,388.29x = 14,408,325,040.20
  5. Step 5: Solve for x
    x = 14,408,325,040.20/130,388.29
  6. Step 6: Final answer
    x = 110,503.22

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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.