Home / 155,595.43-214,708.05-86,679.82

Finding the Fourth Proportional to 155,595.43, 214,708.05 and 86,679.82

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Solution

The fourth proportional to 155,595.43, 214,708.05 and 86,679.82 is: 119,610.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,595.43 : 214,708.05 = 86,679.82 : x
  2. Step 2: Convert to fraction form
    155,595.43/214,708.05 = 86,679.82/x
  3. Step 3: Cross multiply
    155,595.43x = 214,708.05 × 86,679.82
  4. Step 4: Simplify right side
    155,595.43x = 18,610,855,394.94
  5. Step 5: Solve for x
    x = 18,610,855,394.94/155,595.43
  6. Step 6: Final answer
    x = 119,610.55

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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.