Home / 127,814.40-176,385.60-71,223.84

Finding the Fourth Proportional to 127,814.40, 176,385.60 and 71,223.84

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Solution

The fourth proportional to 127,814.40, 176,385.60 and 71,223.84 is: 98,289.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,814.40 : 176,385.60 = 71,223.84 : x
  2. Step 2: Convert to fraction form
    127,814.40/176,385.60 = 71,223.84/x
  3. Step 3: Cross multiply
    127,814.40x = 176,385.60 × 71,223.84
  4. Step 4: Simplify right side
    127,814.40x = 12,562,859,752.70
  5. Step 5: Solve for x
    x = 12,562,859,752.70/127,814.40
  6. Step 6: Final answer
    x = 98,289.86

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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.