Home / 129,822.36-179,155.44-76,108.20

Finding the Fourth Proportional to 129,822.36, 179,155.44 and 76,108.20

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Solution

The fourth proportional to 129,822.36, 179,155.44 and 76,108.20 is: 105,029.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,822.36 : 179,155.44 = 76,108.20 : x
  2. Step 2: Convert to fraction form
    129,822.36/179,155.44 = 76,108.20/x
  3. Step 3: Cross multiply
    129,822.36x = 179,155.44 × 76,108.20
  4. Step 4: Simplify right side
    129,822.36x = 13,635,198,058.61
  5. Step 5: Solve for x
    x = 13,635,198,058.61/129,822.36
  6. Step 6: Final answer
    x = 105,029.66

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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.