Home / 115,849.44-160,040.88-78,288.48

Finding the Fourth Proportional to 115,849.44, 160,040.88 and 78,288.48

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Solution

The fourth proportional to 115,849.44, 160,040.88 and 78,288.48 is: 108,152.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,849.44 : 160,040.88 = 78,288.48 : x
  2. Step 2: Convert to fraction form
    115,849.44/160,040.88 = 78,288.48/x
  3. Step 3: Cross multiply
    115,849.44x = 160,040.88 × 78,288.48
  4. Step 4: Simplify right side
    115,849.44x = 12,529,357,233.06
  5. Step 5: Solve for x
    x = 12,529,357,233.06/115,849.44
  6. Step 6: Final answer
    x = 108,152.07

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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.