Home / 99,405.74-149,202.02-52,054.80

Finding the Fourth Proportional to 99,405.74, 149,202.02 and 52,054.80

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Solution

The fourth proportional to 99,405.74, 149,202.02 and 52,054.80 is: 78,131.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,405.74 : 149,202.02 = 52,054.80 : x
  2. Step 2: Convert to fraction form
    99,405.74/149,202.02 = 52,054.80/x
  3. Step 3: Cross multiply
    99,405.74x = 149,202.02 × 52,054.80
  4. Step 4: Simplify right side
    99,405.74x = 7,766,681,050.42
  5. Step 5: Solve for x
    x = 7,766,681,050.42/99,405.74
  6. Step 6: Final answer
    x = 78,131.12

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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.