Home / 112,974.08-155,904.15-61,987.13

Finding the Fourth Proportional to 112,974.08, 155,904.15 and 61,987.13

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Solution

The fourth proportional to 112,974.08, 155,904.15 and 61,987.13 is: 85,542.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,974.08 : 155,904.15 = 61,987.13 : x
  2. Step 2: Convert to fraction form
    112,974.08/155,904.15 = 61,987.13/x
  3. Step 3: Cross multiply
    112,974.08x = 155,904.15 × 61,987.13
  4. Step 4: Simplify right side
    112,974.08x = 9,664,051,379.44
  5. Step 5: Solve for x
    x = 9,664,051,379.44/112,974.08
  6. Step 6: Final answer
    x = 85,542.20

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1.5x scale

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.