Home / 158,218.99-218,340.56-90,234.20

Finding the Fourth Proportional to 158,218.99, 218,340.56 and 90,234.20

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Solution

The fourth proportional to 158,218.99, 218,340.56 and 90,234.20 is: 124,522.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,218.99 : 218,340.56 = 90,234.20 : x
  2. Step 2: Convert to fraction form
    158,218.99/218,340.56 = 90,234.20/x
  3. Step 3: Cross multiply
    158,218.99x = 218,340.56 × 90,234.20
  4. Step 4: Simplify right side
    158,218.99x = 19,701,786,530.59
  5. Step 5: Solve for x
    x = 19,701,786,530.59/158,218.99
  6. Step 6: Final answer
    x = 124,522.26

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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.