Home / 100,934.08-139,405.76-69,047.04

Finding the Fourth Proportional to 100,934.08, 139,405.76 and 69,047.04

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Solution

The fourth proportional to 100,934.08, 139,405.76 and 69,047.04 is: 95,364.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,934.08 : 139,405.76 = 69,047.04 : x
  2. Step 2: Convert to fraction form
    100,934.08/139,405.76 = 69,047.04/x
  3. Step 3: Cross multiply
    100,934.08x = 139,405.76 × 69,047.04
  4. Step 4: Simplify right side
    100,934.08x = 9,625,555,086.95
  5. Step 5: Solve for x
    x = 9,625,555,086.95/100,934.08
  6. Step 6: Final answer
    x = 95,364.77

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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.