Home / 129,970.35-179,257.14-84,662.58

Finding the Fourth Proportional to 129,970.35, 179,257.14 and 84,662.58

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Solution

The fourth proportional to 129,970.35, 179,257.14 and 84,662.58 is: 116,767.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,970.35 : 179,257.14 = 84,662.58 : x
  2. Step 2: Convert to fraction form
    129,970.35/179,257.14 = 84,662.58/x
  3. Step 3: Cross multiply
    129,970.35x = 179,257.14 × 84,662.58
  4. Step 4: Simplify right side
    129,970.35x = 15,176,371,955.82
  5. Step 5: Solve for x
    x = 15,176,371,955.82/129,970.35
  6. Step 6: Final answer
    x = 116,767.95

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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.