Home / 112,745.70-155,587.36-61,758.02

Finding the Fourth Proportional to 112,745.70, 155,587.36 and 61,758.02

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Solution

The fourth proportional to 112,745.70, 155,587.36 and 61,758.02 is: 85,225.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,745.70 : 155,587.36 = 61,758.02 : x
  2. Step 2: Convert to fraction form
    112,745.70/155,587.36 = 61,758.02/x
  3. Step 3: Cross multiply
    112,745.70x = 155,587.36 × 61,758.02
  4. Step 4: Simplify right side
    112,745.70x = 9,608,767,290.63
  5. Step 5: Solve for x
    x = 9,608,767,290.63/112,745.70
  6. Step 6: Final answer
    x = 85,225.13

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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.