Home / 115,475.02-159,267.27-79,724.86

Finding the Fourth Proportional to 115,475.02, 159,267.27 and 79,724.86

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Solution

The fourth proportional to 115,475.02, 159,267.27 and 79,724.86 is: 109,959.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,475.02 : 159,267.27 = 79,724.86 : x
  2. Step 2: Convert to fraction form
    115,475.02/159,267.27 = 79,724.86/x
  3. Step 3: Cross multiply
    115,475.02x = 159,267.27 × 79,724.86
  4. Step 4: Simplify right side
    115,475.02x = 12,697,560,803.33
  5. Step 5: Solve for x
    x = 12,697,560,803.33/115,475.02
  6. Step 6: Final answer
    x = 109,959.37

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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.