Home / 115,313.04-159,142.50-70,002.54

Finding the Fourth Proportional to 115,313.04, 159,142.50 and 70,002.54

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Solution

The fourth proportional to 115,313.04, 159,142.50 and 70,002.54 is: 96,609.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,313.04 : 159,142.50 = 70,002.54 : x
  2. Step 2: Convert to fraction form
    115,313.04/159,142.50 = 70,002.54/x
  3. Step 3: Cross multiply
    115,313.04x = 159,142.50 × 70,002.54
  4. Step 4: Simplify right side
    115,313.04x = 11,140,379,221.95
  5. Step 5: Solve for x
    x = 11,140,379,221.95/115,313.04
  6. Step 6: Final answer
    x = 96,609.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.