Home / 154,142.06-230,631.69-90,996.53

Finding the Fourth Proportional to 154,142.06, 230,631.69 and 90,996.53

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Solution

The fourth proportional to 154,142.06, 230,631.69 and 90,996.53 is: 136,151.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,142.06 : 230,631.69 = 90,996.53 : x
  2. Step 2: Convert to fraction form
    154,142.06/230,631.69 = 90,996.53/x
  3. Step 3: Cross multiply
    154,142.06x = 230,631.69 × 90,996.53
  4. Step 4: Simplify right side
    154,142.06x = 20,986,682,686.11
  5. Step 5: Solve for x
    x = 20,986,682,686.11/154,142.06
  6. Step 6: Final answer
    x = 136,151.57

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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.