Home / 99,977.60-149,968.80-29,859.20

Finding the Fourth Proportional to 99,977.60, 149,968.80 and 29,859.20

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Solution

The fourth proportional to 99,977.60, 149,968.80 and 29,859.20 is: 44,789.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,977.60 : 149,968.80 = 29,859.20 : x
  2. Step 2: Convert to fraction form
    99,977.60/149,968.80 = 29,859.20/x
  3. Step 3: Cross multiply
    99,977.60x = 149,968.80 × 29,859.20
  4. Step 4: Simplify right side
    99,977.60x = 4,477,948,392.96
  5. Step 5: Solve for x
    x = 4,477,948,392.96/99,977.60
  6. Step 6: Final answer
    x = 44,789.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.