Home / 101,019.08-139,414.64-55,705.95

Finding the Fourth Proportional to 101,019.08, 139,414.64 and 55,705.95

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Solution

The fourth proportional to 101,019.08, 139,414.64 and 55,705.95 is: 76,878.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,019.08 : 139,414.64 = 55,705.95 : x
  2. Step 2: Convert to fraction form
    101,019.08/139,414.64 = 55,705.95/x
  3. Step 3: Cross multiply
    101,019.08x = 139,414.64 × 55,705.95
  4. Step 4: Simplify right side
    101,019.08x = 7,766,224,686.58
  5. Step 5: Solve for x
    x = 7,766,224,686.58/101,019.08
  6. Step 6: Final answer
    x = 76,878.79

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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.