Home / 315,868.17-473,732.49-91,179.78

Finding the Fourth Proportional to 315,868.17, 473,732.49 and 91,179.78

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Solution

The fourth proportional to 315,868.17, 473,732.49 and 91,179.78 is: 136,749.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,868.17 : 473,732.49 = 91,179.78 : x
  2. Step 2: Convert to fraction form
    315,868.17/473,732.49 = 91,179.78/x
  3. Step 3: Cross multiply
    315,868.17x = 473,732.49 × 91,179.78
  4. Step 4: Simplify right side
    315,868.17x = 43,194,824,217.05
  5. Step 5: Solve for x
    x = 43,194,824,217.05/315,868.17
  6. Step 6: Final answer
    x = 136,749.53

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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.