Home / 92,448.64-138,507.52-79,171.20

Finding the Fourth Proportional to 92,448.64, 138,507.52 and 79,171.20

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Solution

The fourth proportional to 92,448.64, 138,507.52 and 79,171.20 is: 118,615.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,448.64 : 138,507.52 = 79,171.20 : x
  2. Step 2: Convert to fraction form
    92,448.64/138,507.52 = 79,171.20/x
  3. Step 3: Cross multiply
    92,448.64x = 138,507.52 × 79,171.20
  4. Step 4: Simplify right side
    92,448.64x = 10,965,806,567.42
  5. Step 5: Solve for x
    x = 10,965,806,567.42/92,448.64
  6. Step 6: Final answer
    x = 118,615.12

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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.