Home / 79,212.24-118,523.07-78,326.46

Finding the Fourth Proportional to 79,212.24, 118,523.07 and 78,326.46

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Solution

The fourth proportional to 79,212.24, 118,523.07 and 78,326.46 is: 117,197.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,212.24 : 118,523.07 = 78,326.46 : x
  2. Step 2: Convert to fraction form
    79,212.24/118,523.07 = 78,326.46/x
  3. Step 3: Cross multiply
    79,212.24x = 118,523.07 × 78,326.46
  4. Step 4: Simplify right side
    79,212.24x = 9,283,492,501.43
  5. Step 5: Solve for x
    x = 9,283,492,501.43/79,212.24
  6. Step 6: Final answer
    x = 117,197.70

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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.