Home / 154,767.65-231,851.77-90,570.49

Finding the Fourth Proportional to 154,767.65, 231,851.77 and 90,570.49

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Solution

The fourth proportional to 154,767.65, 231,851.77 and 90,570.49 is: 135,680.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,767.65 : 231,851.77 = 90,570.49 : x
  2. Step 2: Convert to fraction form
    154,767.65/231,851.77 = 90,570.49/x
  3. Step 3: Cross multiply
    154,767.65x = 231,851.77 × 90,570.49
  4. Step 4: Simplify right side
    154,767.65x = 20,998,927,610.21
  5. Step 5: Solve for x
    x = 20,998,927,610.21/154,767.65
  6. Step 6: Final answer
    x = 135,680.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.