Home / 145,911.22-218,965.28-57,153.65

Finding the Fourth Proportional to 145,911.22, 218,965.28 and 57,153.65

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Solution

The fourth proportional to 145,911.22, 218,965.28 and 57,153.65 is: 85,769.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,911.22 : 218,965.28 = 57,153.65 : x
  2. Step 2: Convert to fraction form
    145,911.22/218,965.28 = 57,153.65/x
  3. Step 3: Cross multiply
    145,911.22x = 218,965.28 × 57,153.65
  4. Step 4: Simplify right side
    145,911.22x = 12,514,663,594.68
  5. Step 5: Solve for x
    x = 12,514,663,594.68/145,911.22
  6. Step 6: Final answer
    x = 85,769.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.