Home / 158,243.58-218,370.69-90,282.56

Finding the Fourth Proportional to 158,243.58, 218,370.69 and 90,282.56

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Solution

The fourth proportional to 158,243.58, 218,370.69 and 90,282.56 is: 124,586.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,243.58 : 218,370.69 = 90,282.56 : x
  2. Step 2: Convert to fraction form
    158,243.58/218,370.69 = 90,282.56/x
  3. Step 3: Cross multiply
    158,243.58x = 218,370.69 × 90,282.56
  4. Step 4: Simplify right side
    158,243.58x = 19,715,063,830.31
  5. Step 5: Solve for x
    x = 19,715,063,830.31/158,243.58
  6. Step 6: Final answer
    x = 124,586.82

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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.