Home / 141,264.32-211,985.76-78,975.68

Finding the Fourth Proportional to 141,264.32, 211,985.76 and 78,975.68

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Solution

The fourth proportional to 141,264.32, 211,985.76 and 78,975.68 is: 118,513.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,264.32 : 211,985.76 = 78,975.68 : x
  2. Step 2: Convert to fraction form
    141,264.32/211,985.76 = 78,975.68/x
  3. Step 3: Cross multiply
    141,264.32x = 211,985.76 × 78,975.68
  4. Step 4: Simplify right side
    141,264.32x = 16,741,719,546.32
  5. Step 5: Solve for x
    x = 16,741,719,546.32/141,264.32
  6. Step 6: Final answer
    x = 118,513.43

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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.