Home / 157,081.03-216,769.43-85,459.41

Finding the Fourth Proportional to 157,081.03, 216,769.43 and 85,459.41

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Solution

The fourth proportional to 157,081.03, 216,769.43 and 85,459.41 is: 117,932.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,081.03 : 216,769.43 = 85,459.41 : x
  2. Step 2: Convert to fraction form
    157,081.03/216,769.43 = 85,459.41/x
  3. Step 3: Cross multiply
    157,081.03x = 216,769.43 × 85,459.41
  4. Step 4: Simplify right side
    157,081.03x = 18,524,987,807.48
  5. Step 5: Solve for x
    x = 18,524,987,807.48/157,081.03
  6. Step 6: Final answer
    x = 117,932.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.