Home / 127,699.43-176,225.21-74,015.59

Finding the Fourth Proportional to 127,699.43, 176,225.21 and 74,015.59

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Solution

The fourth proportional to 127,699.43, 176,225.21 and 74,015.59 is: 102,141.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,699.43 : 176,225.21 = 74,015.59 : x
  2. Step 2: Convert to fraction form
    127,699.43/176,225.21 = 74,015.59/x
  3. Step 3: Cross multiply
    127,699.43x = 176,225.21 × 74,015.59
  4. Step 4: Simplify right side
    127,699.43x = 13,043,412,507.74
  5. Step 5: Solve for x
    x = 13,043,412,507.74/127,699.43
  6. Step 6: Final answer
    x = 102,141.51

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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.