Home / 112,644.40-155,442.90-61,647.52

Finding the Fourth Proportional to 112,644.40, 155,442.90 and 61,647.52

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Solution

The fourth proportional to 112,644.40, 155,442.90 and 61,647.52 is: 85,070.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,644.40 : 155,442.90 = 61,647.52 : x
  2. Step 2: Convert to fraction form
    112,644.40/155,442.90 = 61,647.52/x
  3. Step 3: Cross multiply
    112,644.40x = 155,442.90 × 61,647.52
  4. Step 4: Simplify right side
    112,644.40x = 9,582,669,286.61
  5. Step 5: Solve for x
    x = 9,582,669,286.61/112,644.40
  6. Step 6: Final answer
    x = 85,070.09

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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.