Home / 153,918.20-230,460.24-79,890.68

Finding the Fourth Proportional to 153,918.20, 230,460.24 and 79,890.68

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Solution

The fourth proportional to 153,918.20, 230,460.24 and 79,890.68 is: 119,619.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,918.20 : 230,460.24 = 79,890.68 : x
  2. Step 2: Convert to fraction form
    153,918.20/230,460.24 = 79,890.68/x
  3. Step 3: Cross multiply
    153,918.20x = 230,460.24 × 79,890.68
  4. Step 4: Simplify right side
    153,918.20x = 18,411,625,286.56
  5. Step 5: Solve for x
    x = 18,411,625,286.56/153,918.20
  6. Step 6: Final answer
    x = 119,619.55

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1.5x scale

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.