Home / 127,864.28-176,445.42-71,273.72

Finding the Fourth Proportional to 127,864.28, 176,445.42 and 71,273.72

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Solution

The fourth proportional to 127,864.28, 176,445.42 and 71,273.72 is: 98,353.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,864.28 : 176,445.42 = 71,273.72 : x
  2. Step 2: Convert to fraction form
    127,864.28/176,445.42 = 71,273.72/x
  3. Step 3: Cross multiply
    127,864.28x = 176,445.42 × 71,273.72
  4. Step 4: Simplify right side
    127,864.28x = 12,575,921,460.36
  5. Step 5: Solve for x
    x = 12,575,921,460.36/127,864.28
  6. Step 6: Final answer
    x = 98,353.67

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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.