Home / 100,875.58-139,150.17-63,084.22

Finding the Fourth Proportional to 100,875.58, 139,150.17 and 63,084.22

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Solution

The fourth proportional to 100,875.58, 139,150.17 and 63,084.22 is: 87,019.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,875.58 : 139,150.17 = 63,084.22 : x
  2. Step 2: Convert to fraction form
    100,875.58/139,150.17 = 63,084.22/x
  3. Step 3: Cross multiply
    100,875.58x = 139,150.17 × 63,084.22
  4. Step 4: Simplify right side
    100,875.58x = 8,778,179,589.44
  5. Step 5: Solve for x
    x = 8,778,179,589.44/100,875.58
  6. Step 6: Final answer
    x = 87,019.87

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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.