Home / 112,655.40-155,458.08-61,658.52

Finding the Fourth Proportional to 112,655.40, 155,458.08 and 61,658.52

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Solution

The fourth proportional to 112,655.40, 155,458.08 and 61,658.52 is: 85,085.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,655.40 : 155,458.08 = 61,658.52 : x
  2. Step 2: Convert to fraction form
    112,655.40/155,458.08 = 61,658.52/x
  3. Step 3: Cross multiply
    112,655.40x = 155,458.08 × 61,658.52
  4. Step 4: Simplify right side
    112,655.40x = 9,585,315,134.84
  5. Step 5: Solve for x
    x = 9,585,315,134.84/112,655.40
  6. Step 6: Final answer
    x = 85,085.27

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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.