Home / 153,590.55-230,348.92-78,672.13

Finding the Fourth Proportional to 153,590.55, 230,348.92 and 78,672.13

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Solution

The fourth proportional to 153,590.55, 230,348.92 and 78,672.13 is: 117,989.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,590.55 : 230,348.92 = 78,672.13 : x
  2. Step 2: Convert to fraction form
    153,590.55/230,348.92 = 78,672.13/x
  3. Step 3: Cross multiply
    153,590.55x = 230,348.92 × 78,672.13
  4. Step 4: Simplify right side
    153,590.55x = 18,122,039,786.24
  5. Step 5: Solve for x
    x = 18,122,039,786.24/153,590.55
  6. Step 6: Final answer
    x = 117,989.29

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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.