Home / 127,615.29-176,106.11-71,025.45

Finding the Fourth Proportional to 127,615.29, 176,106.11 and 71,025.45

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Solution

The fourth proportional to 127,615.29, 176,106.11 and 71,025.45 is: 98,013.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,615.29 : 176,106.11 = 71,025.45 : x
  2. Step 2: Convert to fraction form
    127,615.29/176,106.11 = 71,025.45/x
  3. Step 3: Cross multiply
    127,615.29x = 176,106.11 × 71,025.45
  4. Step 4: Simplify right side
    127,615.29x = 12,508,015,355.37
  5. Step 5: Solve for x
    x = 12,508,015,355.37/127,615.29
  6. Step 6: Final answer
    x = 98,013.45

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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.