Home / 179,640.40-247,905.52-99,071.20

Finding the Fourth Proportional to 179,640.40, 247,905.52 and 99,071.20

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Solution

The fourth proportional to 179,640.40, 247,905.52 and 99,071.20 is: 136,719.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,640.40 : 247,905.52 = 99,071.20 : x
  2. Step 2: Convert to fraction form
    179,640.40/247,905.52 = 99,071.20/x
  3. Step 3: Cross multiply
    179,640.40x = 247,905.52 × 99,071.20
  4. Step 4: Simplify right side
    179,640.40x = 24,560,297,353.02
  5. Step 5: Solve for x
    x = 24,560,297,353.02/179,640.40
  6. Step 6: Final answer
    x = 136,719.23

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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.