Home / 127,615.50-176,109.39-71,025.66

Finding the Fourth Proportional to 127,615.50, 176,109.39 and 71,025.66

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Solution

The fourth proportional to 127,615.50, 176,109.39 and 71,025.66 is: 98,015.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,615.50 : 176,109.39 = 71,025.66 : x
  2. Step 2: Convert to fraction form
    127,615.50/176,109.39 = 71,025.66/x
  3. Step 3: Cross multiply
    127,615.50x = 176,109.39 × 71,025.66
  4. Step 4: Simplify right side
    127,615.50x = 12,508,285,656.95
  5. Step 5: Solve for x
    x = 12,508,285,656.95/127,615.50
  6. Step 6: Final answer
    x = 98,015.41

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1.5x scale

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.