Home / 89,089.60-133,634.40-88,475.20

Finding the Fourth Proportional to 89,089.60, 133,634.40 and 88,475.20

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Solution

The fourth proportional to 89,089.60, 133,634.40 and 88,475.20 is: 132,712.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,089.60 : 133,634.40 = 88,475.20 : x
  2. Step 2: Convert to fraction form
    89,089.60/133,634.40 = 88,475.20/x
  3. Step 3: Cross multiply
    89,089.60x = 133,634.40 × 88,475.20
  4. Step 4: Simplify right side
    89,089.60x = 11,823,330,266.88
  5. Step 5: Solve for x
    x = 11,823,330,266.88/89,089.60
  6. Step 6: Final answer
    x = 132,712.80

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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.