Home / 158,345.25-218,508.10-86,723.74

Finding the Fourth Proportional to 158,345.25, 218,508.10 and 86,723.74

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Solution

The fourth proportional to 158,345.25, 218,508.10 and 86,723.74 is: 119,674.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,345.25 : 218,508.10 = 86,723.74 : x
  2. Step 2: Convert to fraction form
    158,345.25/218,508.10 = 86,723.74/x
  3. Step 3: Cross multiply
    158,345.25x = 218,508.10 × 86,723.74
  4. Step 4: Simplify right side
    158,345.25x = 18,949,839,652.29
  5. Step 5: Solve for x
    x = 18,949,839,652.29/158,345.25
  6. Step 6: Final answer
    x = 119,674.19

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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.