Home / 127,812.84-176,385.32-71,227.86

Finding the Fourth Proportional to 127,812.84, 176,385.32 and 71,227.86

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Solution

The fourth proportional to 127,812.84, 176,385.32 and 71,227.86 is: 98,296.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,812.84 : 176,385.32 = 71,227.86 : x
  2. Step 2: Convert to fraction form
    127,812.84/176,385.32 = 71,227.86/x
  3. Step 3: Cross multiply
    127,812.84x = 176,385.32 × 71,227.86
  4. Step 4: Simplify right side
    127,812.84x = 12,563,548,879.02
  5. Step 5: Solve for x
    x = 12,563,548,879.02/127,812.84
  6. Step 6: Final answer
    x = 98,296.45

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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.