Home / 115,481.16-159,359.58-72,483.66

Finding the Fourth Proportional to 115,481.16, 159,359.58 and 72,483.66

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Solution

The fourth proportional to 115,481.16, 159,359.58 and 72,483.66 is: 100,024.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,481.16 : 159,359.58 = 72,483.66 : x
  2. Step 2: Convert to fraction form
    115,481.16/159,359.58 = 72,483.66/x
  3. Step 3: Cross multiply
    115,481.16x = 159,359.58 × 72,483.66
  4. Step 4: Simplify right side
    115,481.16x = 11,550,965,614.46
  5. Step 5: Solve for x
    x = 11,550,965,614.46/115,481.16
  6. Step 6: Final answer
    x = 100,024.68

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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.