Home / 129,777.04-179,058.40-76,033.20

Finding the Fourth Proportional to 129,777.04, 179,058.40 and 76,033.20

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Solution

The fourth proportional to 129,777.04, 179,058.40 and 76,033.20 is: 104,905.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,777.04 : 179,058.40 = 76,033.20 : x
  2. Step 2: Convert to fraction form
    129,777.04/179,058.40 = 76,033.20/x
  3. Step 3: Cross multiply
    129,777.04x = 179,058.40 × 76,033.20
  4. Step 4: Simplify right side
    129,777.04x = 13,614,383,138.88
  5. Step 5: Solve for x
    x = 13,614,383,138.88/129,777.04
  6. Step 6: Final answer
    x = 104,905.95

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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.