Home / 112,565.30-155,338.90-61,579.04

Finding the Fourth Proportional to 112,565.30, 155,338.90 and 61,579.04

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Solution

The fourth proportional to 112,565.30, 155,338.90 and 61,579.04 is: 84,978.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,565.30 : 155,338.90 = 61,579.04 : x
  2. Step 2: Convert to fraction form
    112,565.30/155,338.90 = 61,579.04/x
  3. Step 3: Cross multiply
    112,565.30x = 155,338.90 × 61,579.04
  4. Step 4: Simplify right side
    112,565.30x = 9,565,619,406.01
  5. Step 5: Solve for x
    x = 9,565,619,406.01/112,565.30
  6. Step 6: Final answer
    x = 84,978.41

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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.