Home / 115,635.27-159,603.34-75,278.74

Finding the Fourth Proportional to 115,635.27, 159,603.34 and 75,278.74

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Solution

The fourth proportional to 115,635.27, 159,603.34 and 75,278.74 is: 103,902.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,635.27 : 159,603.34 = 75,278.74 : x
  2. Step 2: Convert to fraction form
    115,635.27/159,603.34 = 75,278.74/x
  3. Step 3: Cross multiply
    115,635.27x = 159,603.34 × 75,278.74
  4. Step 4: Simplify right side
    115,635.27x = 12,014,738,334.99
  5. Step 5: Solve for x
    x = 12,014,738,334.99/115,635.27
  6. Step 6: Final answer
    x = 103,902.02

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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.