Home / 130,218.48-179,730.82-76,520.74

Finding the Fourth Proportional to 130,218.48, 179,730.82 and 76,520.74

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Solution

The fourth proportional to 130,218.48, 179,730.82 and 76,520.74 is: 105,615.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,218.48 : 179,730.82 = 76,520.74 : x
  2. Step 2: Convert to fraction form
    130,218.48/179,730.82 = 76,520.74/x
  3. Step 3: Cross multiply
    130,218.48x = 179,730.82 × 76,520.74
  4. Step 4: Simplify right side
    130,218.48x = 13,753,135,347.21
  5. Step 5: Solve for x
    x = 13,753,135,347.21/130,218.48
  6. Step 6: Final answer
    x = 105,615.85

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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.