Home / 158,494.12-218,727.26-86,874.16

Finding the Fourth Proportional to 158,494.12, 218,727.26 and 86,874.16

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Solution

The fourth proportional to 158,494.12, 218,727.26 and 86,874.16 is: 119,889.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,494.12 : 218,727.26 = 86,874.16 : x
  2. Step 2: Convert to fraction form
    158,494.12/218,727.26 = 86,874.16/x
  3. Step 3: Cross multiply
    158,494.12x = 218,727.26 × 86,874.16
  4. Step 4: Simplify right side
    158,494.12x = 19,001,746,981.60
  5. Step 5: Solve for x
    x = 19,001,746,981.60/158,494.12
  6. Step 6: Final answer
    x = 119,889.29

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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.