Home / 127,983.19-176,604.54-71,398.21

Finding the Fourth Proportional to 127,983.19, 176,604.54 and 71,398.21

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Solution

The fourth proportional to 127,983.19, 176,604.54 and 71,398.21 is: 98,522.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,983.19 : 176,604.54 = 71,398.21 : x
  2. Step 2: Convert to fraction form
    127,983.19/176,604.54 = 71,398.21/x
  3. Step 3: Cross multiply
    127,983.19x = 176,604.54 × 71,398.21
  4. Step 4: Simplify right side
    127,983.19x = 12,609,248,033.87
  5. Step 5: Solve for x
    x = 12,609,248,033.87/127,983.19
  6. Step 6: Final answer
    x = 98,522.69

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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.