Home / 127,858.38-176,445.36-71,273.40

Finding the Fourth Proportional to 127,858.38, 176,445.36 and 71,273.40

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Solution

The fourth proportional to 127,858.38, 176,445.36 and 71,273.40 is: 98,357.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,858.38 : 176,445.36 = 71,273.40 : x
  2. Step 2: Convert to fraction form
    127,858.38/176,445.36 = 71,273.40/x
  3. Step 3: Cross multiply
    127,858.38x = 176,445.36 × 71,273.40
  4. Step 4: Simplify right side
    127,858.38x = 12,575,860,721.42
  5. Step 5: Solve for x
    x = 12,575,860,721.42/127,858.38
  6. Step 6: Final answer
    x = 98,357.74

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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.