Home / 112,788.24-155,651.08-61,805.47

Finding the Fourth Proportional to 112,788.24, 155,651.08 and 61,805.47

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Solution

The fourth proportional to 112,788.24, 155,651.08 and 61,805.47 is: 85,293.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,788.24 : 155,651.08 = 61,805.47 : x
  2. Step 2: Convert to fraction form
    112,788.24/155,651.08 = 61,805.47/x
  3. Step 3: Cross multiply
    112,788.24x = 155,651.08 × 61,805.47
  4. Step 4: Simplify right side
    112,788.24x = 9,620,088,155.41
  5. Step 5: Solve for x
    x = 9,620,088,155.41/112,788.24
  6. Step 6: Final answer
    x = 85,293.36

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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.