Home / 112,634.79-155,181.11-92,459.72

Finding the Fourth Proportional to 112,634.79, 155,181.11 and 92,459.72

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Solution

The fourth proportional to 112,634.79, 155,181.11 and 92,459.72 is: 127,385.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,634.79 : 155,181.11 = 92,459.72 : x
  2. Step 2: Convert to fraction form
    112,634.79/155,181.11 = 92,459.72/x
  3. Step 3: Cross multiply
    112,634.79x = 155,181.11 × 92,459.72
  4. Step 4: Simplify right side
    112,634.79x = 14,348,000,741.69
  5. Step 5: Solve for x
    x = 14,348,000,741.69/112,634.79
  6. Step 6: Final answer
    x = 127,385.16

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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.