Home / 100,854.96-139,177.98-55,531.95

Finding the Fourth Proportional to 100,854.96, 139,177.98 and 55,531.95

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Solution

The fourth proportional to 100,854.96, 139,177.98 and 55,531.95 is: 76,633.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,854.96 : 139,177.98 = 55,531.95 : x
  2. Step 2: Convert to fraction form
    100,854.96/139,177.98 = 55,531.95/x
  3. Step 3: Cross multiply
    100,854.96x = 139,177.98 × 55,531.95
  4. Step 4: Simplify right side
    100,854.96x = 7,728,824,626.46
  5. Step 5: Solve for x
    x = 7,728,824,626.46/100,854.96
  6. Step 6: Final answer
    x = 76,633.06

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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.