Home / 99,835.20-149,731.20-43,675.20

Finding the Fourth Proportional to 99,835.20, 149,731.20 and 43,675.20

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Solution

The fourth proportional to 99,835.20, 149,731.20 and 43,675.20 is: 65,503.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,835.20 : 149,731.20 = 43,675.20 : x
  2. Step 2: Convert to fraction form
    99,835.20/149,731.20 = 43,675.20/x
  3. Step 3: Cross multiply
    99,835.20x = 149,731.20 × 43,675.20
  4. Step 4: Simplify right side
    99,835.20x = 6,539,540,106.24
  5. Step 5: Solve for x
    x = 6,539,540,106.24/99,835.20
  6. Step 6: Final answer
    x = 65,503.35

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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.