Home / 147,159.13-203,086.26-86,732.32

Finding the Fourth Proportional to 147,159.13, 203,086.26 and 86,732.32

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Solution

The fourth proportional to 147,159.13, 203,086.26 and 86,732.32 is: 119,694.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,159.13 : 203,086.26 = 86,732.32 : x
  2. Step 2: Convert to fraction form
    147,159.13/203,086.26 = 86,732.32/x
  3. Step 3: Cross multiply
    147,159.13x = 203,086.26 × 86,732.32
  4. Step 4: Simplify right side
    147,159.13x = 17,614,142,489.92
  5. Step 5: Solve for x
    x = 17,614,142,489.92/147,159.13
  6. Step 6: Final answer
    x = 119,694.53

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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.