Home / 213,512.16-320,159.43-71,306.28

Finding the Fourth Proportional to 213,512.16, 320,159.43 and 71,306.28

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Solution

The fourth proportional to 213,512.16, 320,159.43 and 71,306.28 is: 106,923.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,512.16 : 320,159.43 = 71,306.28 : x
  2. Step 2: Convert to fraction form
    213,512.16/320,159.43 = 71,306.28/x
  3. Step 3: Cross multiply
    213,512.16x = 320,159.43 × 71,306.28
  4. Step 4: Simplify right side
    213,512.16x = 22,829,377,960.22
  5. Step 5: Solve for x
    x = 22,829,377,960.22/213,512.16
  6. Step 6: Final answer
    x = 106,923.08

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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.