Home / 158,236.14-218,360.44-90,275.11

Finding the Fourth Proportional to 158,236.14, 218,360.44 and 90,275.11

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Solution

The fourth proportional to 158,236.14, 218,360.44 and 90,275.11 is: 124,576.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,236.14 : 218,360.44 = 90,275.11 : x
  2. Step 2: Convert to fraction form
    158,236.14/218,360.44 = 90,275.11/x
  3. Step 3: Cross multiply
    158,236.14x = 218,360.44 × 90,275.11
  4. Step 4: Simplify right side
    158,236.14x = 19,712,512,740.65
  5. Step 5: Solve for x
    x = 19,712,512,740.65/158,236.14
  6. Step 6: Final answer
    x = 124,576.55

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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.