Home / 100,994.25-139,373.02-55,673.86

Finding the Fourth Proportional to 100,994.25, 139,373.02 and 55,673.86

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Solution

The fourth proportional to 100,994.25, 139,373.02 and 55,673.86 is: 76,830.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,994.25 : 139,373.02 = 55,673.86 : x
  2. Step 2: Convert to fraction form
    100,994.25/139,373.02 = 55,673.86/x
  3. Step 3: Cross multiply
    100,994.25x = 139,373.02 × 55,673.86
  4. Step 4: Simplify right side
    100,994.25x = 7,759,434,003.26
  5. Step 5: Solve for x
    x = 7,759,434,003.26/100,994.25
  6. Step 6: Final answer
    x = 76,830.45

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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.