Home / 129,730.75-179,024.37-76,051.52

Finding the Fourth Proportional to 129,730.75, 179,024.37 and 76,051.52

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Solution

The fourth proportional to 129,730.75, 179,024.37 and 76,051.52 is: 104,948.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,730.75 : 179,024.37 = 76,051.52 : x
  2. Step 2: Convert to fraction form
    129,730.75/179,024.37 = 76,051.52/x
  3. Step 3: Cross multiply
    129,730.75x = 179,024.37 × 76,051.52
  4. Step 4: Simplify right side
    129,730.75x = 13,615,074,180.16
  5. Step 5: Solve for x
    x = 13,615,074,180.16/129,730.75
  6. Step 6: Final answer
    x = 104,948.71

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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.