Home / 141,293.76-212,013.36-78,102.15

Finding the Fourth Proportional to 141,293.76, 212,013.36 and 78,102.15

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Solution

The fourth proportional to 141,293.76, 212,013.36 and 78,102.15 is: 117,193.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,293.76 : 212,013.36 = 78,102.15 : x
  2. Step 2: Convert to fraction form
    141,293.76/212,013.36 = 78,102.15/x
  3. Step 3: Cross multiply
    141,293.76x = 212,013.36 × 78,102.15
  4. Step 4: Simplify right side
    141,293.76x = 16,558,699,244.72
  5. Step 5: Solve for x
    x = 16,558,699,244.72/141,293.76
  6. Step 6: Final answer
    x = 117,193.42

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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.