Home / 105,278.24-145,298.79-67,025.57

Finding the Fourth Proportional to 105,278.24, 145,298.79 and 67,025.57

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Solution

The fourth proportional to 105,278.24, 145,298.79 and 67,025.57 is: 92,504.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,278.24 : 145,298.79 = 67,025.57 : x
  2. Step 2: Convert to fraction form
    105,278.24/145,298.79 = 67,025.57/x
  3. Step 3: Cross multiply
    105,278.24x = 145,298.79 × 67,025.57
  4. Step 4: Simplify right side
    105,278.24x = 9,738,733,821.95
  5. Step 5: Solve for x
    x = 9,738,733,821.95/105,278.24
  6. Step 6: Final answer
    x = 92,504.72

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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.