Home / 127,740.04-176,272.82-76,722.46

Finding the Fourth Proportional to 127,740.04, 176,272.82 and 76,722.46

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Solution

The fourth proportional to 127,740.04, 176,272.82 and 76,722.46 is: 105,871.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,740.04 : 176,272.82 = 76,722.46 : x
  2. Step 2: Convert to fraction form
    127,740.04/176,272.82 = 76,722.46/x
  3. Step 3: Cross multiply
    127,740.04x = 176,272.82 × 76,722.46
  4. Step 4: Simplify right side
    127,740.04x = 13,524,084,381.54
  5. Step 5: Solve for x
    x = 13,524,084,381.54/127,740.04
  6. Step 6: Final answer
    x = 105,871.93

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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.