Home / 129,973.35-179,261.28-84,665.58

Finding the Fourth Proportional to 129,973.35, 179,261.28 and 84,665.58

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Solution

The fourth proportional to 129,973.35, 179,261.28 and 84,665.58 is: 116,772.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,973.35 : 179,261.28 = 84,665.58 : x
  2. Step 2: Convert to fraction form
    129,973.35/179,261.28 = 84,665.58/x
  3. Step 3: Cross multiply
    129,973.35x = 179,261.28 × 84,665.58
  4. Step 4: Simplify right side
    129,973.35x = 15,177,260,242.74
  5. Step 5: Solve for x
    x = 15,177,260,242.74/129,973.35
  6. Step 6: Final answer
    x = 116,772.09

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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.