Home / 100,903.32-139,246.62-58,486.44

Finding the Fourth Proportional to 100,903.32, 139,246.62 and 58,486.44

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Solution

The fourth proportional to 100,903.32, 139,246.62 and 58,486.44 is: 80,711.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,903.32 : 139,246.62 = 58,486.44 : x
  2. Step 2: Convert to fraction form
    100,903.32/139,246.62 = 58,486.44/x
  3. Step 3: Cross multiply
    100,903.32x = 139,246.62 × 58,486.44
  4. Step 4: Simplify right side
    100,903.32x = 8,144,039,085.83
  5. Step 5: Solve for x
    x = 8,144,039,085.83/100,903.32
  6. Step 6: Final answer
    x = 80,711.31

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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.