Home / 127,720.03-176,253.54-74,036.14

Finding the Fourth Proportional to 127,720.03, 176,253.54 and 74,036.14

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Solution

The fourth proportional to 127,720.03, 176,253.54 and 74,036.14 is: 102,169.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,720.03 : 176,253.54 = 74,036.14 : x
  2. Step 2: Convert to fraction form
    127,720.03/176,253.54 = 74,036.14/x
  3. Step 3: Cross multiply
    127,720.03x = 176,253.54 × 74,036.14
  4. Step 4: Simplify right side
    127,720.03x = 13,049,131,762.94
  5. Step 5: Solve for x
    x = 13,049,131,762.94/127,720.03
  6. Step 6: Final answer
    x = 102,169.81

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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.