Home / 127,672.19-176,188.83-71,084.78

Finding the Fourth Proportional to 127,672.19, 176,188.83 and 71,084.78

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Solution

The fourth proportional to 127,672.19, 176,188.83 and 71,084.78 is: 98,097.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,672.19 : 176,188.83 = 71,084.78 : x
  2. Step 2: Convert to fraction form
    127,672.19/176,188.83 = 71,084.78/x
  3. Step 3: Cross multiply
    127,672.19x = 176,188.83 × 71,084.78
  4. Step 4: Simplify right side
    127,672.19x = 12,524,344,219.01
  5. Step 5: Solve for x
    x = 12,524,344,219.01/127,672.19
  6. Step 6: Final answer
    x = 98,097.67

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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.