Home / 158,839.68-219,199.36-86,242.68

Finding the Fourth Proportional to 158,839.68, 219,199.36 and 86,242.68

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Solution

The fourth proportional to 158,839.68, 219,199.36 and 86,242.68 is: 119,015.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,839.68 : 219,199.36 = 86,242.68 : x
  2. Step 2: Convert to fraction form
    158,839.68/219,199.36 = 86,242.68/x
  3. Step 3: Cross multiply
    158,839.68x = 219,199.36 × 86,242.68
  4. Step 4: Simplify right side
    158,839.68x = 18,904,340,260.68
  5. Step 5: Solve for x
    x = 18,904,340,260.68/158,839.68
  6. Step 6: Final answer
    x = 119,015.23

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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.