Home / 99,547.80-149,321.70-88,272.60

Finding the Fourth Proportional to 99,547.80, 149,321.70 and 88,272.60

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Solution

The fourth proportional to 99,547.80, 149,321.70 and 88,272.60 is: 132,408.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,547.80 : 149,321.70 = 88,272.60 : x
  2. Step 2: Convert to fraction form
    99,547.80/149,321.70 = 88,272.60/x
  3. Step 3: Cross multiply
    99,547.80x = 149,321.70 × 88,272.60
  4. Step 4: Simplify right side
    99,547.80x = 13,181,014,695.42
  5. Step 5: Solve for x
    x = 13,181,014,695.42/99,547.80
  6. Step 6: Final answer
    x = 132,408.90

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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.