Home / 179,109.47-247,206.40-102,679.89

Finding the Fourth Proportional to 179,109.47, 247,206.40 and 102,679.89

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Solution

The fourth proportional to 179,109.47, 247,206.40 and 102,679.89 is: 141,718.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,109.47 : 247,206.40 = 102,679.89 : x
  2. Step 2: Convert to fraction form
    179,109.47/247,206.40 = 102,679.89/x
  3. Step 3: Cross multiply
    179,109.47x = 247,206.40 × 102,679.89
  4. Step 4: Simplify right side
    179,109.47x = 25,383,125,959.30
  5. Step 5: Solve for x
    x = 25,383,125,959.30/179,109.47
  6. Step 6: Final answer
    x = 141,718.50

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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.