Home / 180,433.22-248,994.36-99,860.78

Finding the Fourth Proportional to 180,433.22, 248,994.36 and 99,860.78

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Solution

The fourth proportional to 180,433.22, 248,994.36 and 99,860.78 is: 137,805.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,433.22 : 248,994.36 = 99,860.78 : x
  2. Step 2: Convert to fraction form
    180,433.22/248,994.36 = 99,860.78/x
  3. Step 3: Cross multiply
    180,433.22x = 248,994.36 × 99,860.78
  4. Step 4: Simplify right side
    180,433.22x = 24,864,771,005.20
  5. Step 5: Solve for x
    x = 24,864,771,005.20/180,433.22
  6. Step 6: Final answer
    x = 137,805.95

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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.