Home / 99,739.90-149,480.58-40,506.76

Finding the Fourth Proportional to 99,739.90, 149,480.58 and 40,506.76

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Solution

The fourth proportional to 99,739.90, 149,480.58 and 40,506.76 is: 60,707.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,739.90 : 149,480.58 = 40,506.76 : x
  2. Step 2: Convert to fraction form
    99,739.90/149,480.58 = 40,506.76/x
  3. Step 3: Cross multiply
    99,739.90x = 149,480.58 × 40,506.76
  4. Step 4: Simplify right side
    99,739.90x = 6,054,973,231.32
  5. Step 5: Solve for x
    x = 6,054,973,231.32/99,739.90
  6. Step 6: Final answer
    x = 60,707.64

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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.