Home / 127,712.28-176,263.92-97,440.36

Finding the Fourth Proportional to 127,712.28, 176,263.92 and 97,440.36

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Solution

The fourth proportional to 127,712.28, 176,263.92 and 97,440.36 is: 134,483.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,712.28 : 176,263.92 = 97,440.36 : x
  2. Step 2: Convert to fraction form
    127,712.28/176,263.92 = 97,440.36/x
  3. Step 3: Cross multiply
    127,712.28x = 176,263.92 × 97,440.36
  4. Step 4: Simplify right side
    127,712.28x = 17,175,219,819.81
  5. Step 5: Solve for x
    x = 17,175,219,819.81/127,712.28
  6. Step 6: Final answer
    x = 134,483.70

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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.