Home / 79,206.74-118,514.82-78,320.96

Finding the Fourth Proportional to 79,206.74, 118,514.82 and 78,320.96

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Solution

The fourth proportional to 79,206.74, 118,514.82 and 78,320.96 is: 117,189.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,206.74 : 118,514.82 = 78,320.96 : x
  2. Step 2: Convert to fraction form
    79,206.74/118,514.82 = 78,320.96/x
  3. Step 3: Cross multiply
    79,206.74x = 118,514.82 × 78,320.96
  4. Step 4: Simplify right side
    79,206.74x = 9,282,194,476.63
  5. Step 5: Solve for x
    x = 9,282,194,476.63/79,206.74
  6. Step 6: Final answer
    x = 117,189.45

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1.5x scale

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.