Home / 112,125.20-154,732.21-61,824.20

Finding the Fourth Proportional to 112,125.20, 154,732.21 and 61,824.20

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Solution

The fourth proportional to 112,125.20, 154,732.21 and 61,824.20 is: 85,317.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,125.20 : 154,732.21 = 61,824.20 : x
  2. Step 2: Convert to fraction form
    112,125.20/154,732.21 = 61,824.20/x
  3. Step 3: Cross multiply
    112,125.20x = 154,732.21 × 61,824.20
  4. Step 4: Simplify right side
    112,125.20x = 9,566,194,169.26
  5. Step 5: Solve for x
    x = 9,566,194,169.26/112,125.20
  6. Step 6: Final answer
    x = 85,317.08

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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.