Home / 158,188.43-218,298.99-86,568.23

Finding the Fourth Proportional to 158,188.43, 218,298.99 and 86,568.23

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Solution

The fourth proportional to 158,188.43, 218,298.99 and 86,568.23 is: 119,463.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,188.43 : 218,298.99 = 86,568.23 : x
  2. Step 2: Convert to fraction form
    158,188.43/218,298.99 = 86,568.23/x
  3. Step 3: Cross multiply
    158,188.43x = 218,298.99 × 86,568.23
  4. Step 4: Simplify right side
    158,188.43x = 18,897,756,083.59
  5. Step 5: Solve for x
    x = 18,897,756,083.59/158,188.43
  6. Step 6: Final answer
    x = 119,463.58

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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.