Home / 100,927.32-139,279.78-58,510.44

Finding the Fourth Proportional to 100,927.32, 139,279.78 and 58,510.44

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Solution

The fourth proportional to 100,927.32, 139,279.78 and 58,510.44 is: 80,744.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,927.32 : 139,279.78 = 58,510.44 : x
  2. Step 2: Convert to fraction form
    100,927.32/139,279.78 = 58,510.44/x
  3. Step 3: Cross multiply
    100,927.32x = 139,279.78 × 58,510.44
  4. Step 4: Simplify right side
    100,927.32x = 8,149,321,210.90
  5. Step 5: Solve for x
    x = 8,149,321,210.90/100,927.32
  6. Step 6: Final answer
    x = 80,744.45

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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.