Home / 127,767.96-176,130.72-81,822.72

Finding the Fourth Proportional to 127,767.96, 176,130.72 and 81,822.72

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Solution

The fourth proportional to 127,767.96, 176,130.72 and 81,822.72 is: 112,794.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,767.96 : 176,130.72 = 81,822.72 : x
  2. Step 2: Convert to fraction form
    127,767.96/176,130.72 = 81,822.72/x
  3. Step 3: Cross multiply
    127,767.96x = 176,130.72 × 81,822.72
  4. Step 4: Simplify right side
    127,767.96x = 14,411,494,585.96
  5. Step 5: Solve for x
    x = 14,411,494,585.96/127,767.96
  6. Step 6: Final answer
    x = 112,794.28

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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.