Home / 157,609.68-236,294.16-78,780.48

Finding the Fourth Proportional to 157,609.68, 236,294.16 and 78,780.48

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Solution

The fourth proportional to 157,609.68, 236,294.16 and 78,780.48 is: 118,110.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,609.68 : 236,294.16 = 78,780.48 : x
  2. Step 2: Convert to fraction form
    157,609.68/236,294.16 = 78,780.48/x
  3. Step 3: Cross multiply
    157,609.68x = 236,294.16 × 78,780.48
  4. Step 4: Simplify right side
    157,609.68x = 18,615,367,346.00
  5. Step 5: Solve for x
    x = 18,615,367,346.00/157,609.68
  6. Step 6: Final answer
    x = 118,110.56

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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.