Home / 158,481.86-237,645.17-78,427.40

Finding the Fourth Proportional to 158,481.86, 237,645.17 and 78,427.40

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Solution

The fourth proportional to 158,481.86, 237,645.17 and 78,427.40 is: 117,602.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,481.86 : 237,645.17 = 78,427.40 : x
  2. Step 2: Convert to fraction form
    158,481.86/237,645.17 = 78,427.40/x
  3. Step 3: Cross multiply
    158,481.86x = 237,645.17 × 78,427.40
  4. Step 4: Simplify right side
    158,481.86x = 18,637,891,225.30
  5. Step 5: Solve for x
    x = 18,637,891,225.30/158,481.86
  6. Step 6: Final answer
    x = 117,602.68

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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.