Home / 111,867.20-154,372.18-64,087.32

Finding the Fourth Proportional to 111,867.20, 154,372.18 and 64,087.32

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Solution

The fourth proportional to 111,867.20, 154,372.18 and 64,087.32 is: 88,437.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,867.20 : 154,372.18 = 64,087.32 : x
  2. Step 2: Convert to fraction form
    111,867.20/154,372.18 = 64,087.32/x
  3. Step 3: Cross multiply
    111,867.20x = 154,372.18 × 64,087.32
  4. Step 4: Simplify right side
    111,867.20x = 9,893,299,298.76
  5. Step 5: Solve for x
    x = 9,893,299,298.76/111,867.20
  6. Step 6: Final answer
    x = 88,437.89

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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.