Home / 158,480.35-237,642.91-78,425.90

Finding the Fourth Proportional to 158,480.35, 237,642.91 and 78,425.90

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Solution

The fourth proportional to 158,480.35, 237,642.91 and 78,425.90 is: 117,600.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,480.35 : 237,642.91 = 78,425.90 : x
  2. Step 2: Convert to fraction form
    158,480.35/237,642.91 = 78,425.90/x
  3. Step 3: Cross multiply
    158,480.35x = 237,642.91 × 78,425.90
  4. Step 4: Simplify right side
    158,480.35x = 18,637,358,375.03
  5. Step 5: Solve for x
    x = 18,637,358,375.03/158,480.35
  6. Step 6: Final answer
    x = 117,600.44

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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.