Home / 105,493.33-145,582.17-57,745.65

Finding the Fourth Proportional to 105,493.33, 145,582.17 and 57,745.65

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Solution

The fourth proportional to 105,493.33, 145,582.17 and 57,745.65 is: 79,689.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,493.33 : 145,582.17 = 57,745.65 : x
  2. Step 2: Convert to fraction form
    105,493.33/145,582.17 = 57,745.65/x
  3. Step 3: Cross multiply
    105,493.33x = 145,582.17 × 57,745.65
  4. Step 4: Simplify right side
    105,493.33x = 8,406,737,035.06
  5. Step 5: Solve for x
    x = 8,406,737,035.06/105,493.33
  6. Step 6: Final answer
    x = 79,689.75

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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.