Home / 127,720.74-176,254.58-74,036.92

Finding the Fourth Proportional to 127,720.74, 176,254.58 and 74,036.92

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Solution

The fourth proportional to 127,720.74, 176,254.58 and 74,036.92 is: 102,170.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,720.74 : 176,254.58 = 74,036.92 : x
  2. Step 2: Convert to fraction form
    127,720.74/176,254.58 = 74,036.92/x
  3. Step 3: Cross multiply
    127,720.74x = 176,254.58 × 74,036.92
  4. Step 4: Simplify right side
    127,720.74x = 13,049,346,239.09
  5. Step 5: Solve for x
    x = 13,049,346,239.09/127,720.74
  6. Step 6: Final answer
    x = 102,170.93

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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.