Home / 111,872.07-154,390.34-64,132.59

Finding the Fourth Proportional to 111,872.07, 154,390.34 and 64,132.59

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Solution

The fourth proportional to 111,872.07, 154,390.34 and 64,132.59 is: 88,506.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,872.07 : 154,390.34 = 64,132.59 : x
  2. Step 2: Convert to fraction form
    111,872.07/154,390.34 = 64,132.59/x
  3. Step 3: Cross multiply
    111,872.07x = 154,390.34 × 64,132.59
  4. Step 4: Simplify right side
    111,872.07x = 9,901,452,375.18
  5. Step 5: Solve for x
    x = 9,901,452,375.18/111,872.07
  6. Step 6: Final answer
    x = 88,506.92

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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.