Home / 127,633.40-176,131.10-71,043.56

Finding the Fourth Proportional to 127,633.40, 176,131.10 and 71,043.56

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Solution

The fourth proportional to 127,633.40, 176,131.10 and 71,043.56 is: 98,038.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,633.40 : 176,131.10 = 71,043.56 : x
  2. Step 2: Convert to fraction form
    127,633.40/176,131.10 = 71,043.56/x
  3. Step 3: Cross multiply
    127,633.40x = 176,131.10 × 71,043.56
  4. Step 4: Simplify right side
    127,633.40x = 12,512,980,370.72
  5. Step 5: Solve for x
    x = 12,512,980,370.72/127,633.40
  6. Step 6: Final answer
    x = 98,038.45

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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.