Home / 158,320.68-218,388.06-137,063.04

Finding the Fourth Proportional to 158,320.68, 218,388.06 and 137,063.04

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Solution

The fourth proportional to 158,320.68, 218,388.06 and 137,063.04 is: 189,065.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,320.68 : 218,388.06 = 137,063.04 : x
  2. Step 2: Convert to fraction form
    158,320.68/218,388.06 = 137,063.04/x
  3. Step 3: Cross multiply
    158,320.68x = 218,388.06 × 137,063.04
  4. Step 4: Simplify right side
    158,320.68x = 29,932,931,403.30
  5. Step 5: Solve for x
    x = 29,932,931,403.30/158,320.68
  6. Step 6: Final answer
    x = 189,065.20

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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.