Home / 213,648.60-320,663.07-113,891.16

Finding the Fourth Proportional to 213,648.60, 320,663.07 and 113,891.16

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Solution

The fourth proportional to 213,648.60, 320,663.07 and 113,891.16 is: 170,938.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,648.60 : 320,663.07 = 113,891.16 : x
  2. Step 2: Convert to fraction form
    213,648.60/320,663.07 = 113,891.16/x
  3. Step 3: Cross multiply
    213,648.60x = 320,663.07 × 113,891.16
  4. Step 4: Simplify right side
    213,648.60x = 36,520,689,011.46
  5. Step 5: Solve for x
    x = 36,520,689,011.46/213,648.60
  6. Step 6: Final answer
    x = 170,938.12

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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.