Home / 112,607.72-155,396.24-61,620.24

Finding the Fourth Proportional to 112,607.72, 155,396.24 and 61,620.24

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Solution

The fourth proportional to 112,607.72, 155,396.24 and 61,620.24 is: 85,034.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,607.72 : 155,396.24 = 61,620.24 : x
  2. Step 2: Convert to fraction form
    112,607.72/155,396.24 = 61,620.24/x
  3. Step 3: Cross multiply
    112,607.72x = 155,396.24 × 61,620.24
  4. Step 4: Simplify right side
    112,607.72x = 9,575,553,603.90
  5. Step 5: Solve for x
    x = 9,575,553,603.90/112,607.72
  6. Step 6: Final answer
    x = 85,034.61

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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.