Home / 127,666.40-176,174.88-71,076.56

Finding the Fourth Proportional to 127,666.40, 176,174.88 and 71,076.56

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Solution

The fourth proportional to 127,666.40, 176,174.88 and 71,076.56 is: 98,083.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,666.40 : 176,174.88 = 71,076.56 : x
  2. Step 2: Convert to fraction form
    127,666.40/176,174.88 = 71,076.56/x
  3. Step 3: Cross multiply
    127,666.40x = 176,174.88 × 71,076.56
  4. Step 4: Simplify right side
    127,666.40x = 12,521,904,428.81
  5. Step 5: Solve for x
    x = 12,521,904,428.81/127,666.40
  6. Step 6: Final answer
    x = 98,083.01

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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.