Home / 217,431.03-326,257.88-99,087.15

Finding the Fourth Proportional to 217,431.03, 326,257.88 and 99,087.15

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Solution

The fourth proportional to 217,431.03, 326,257.88 and 99,087.15 is: 148,681.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,431.03 : 326,257.88 = 99,087.15 : x
  2. Step 2: Convert to fraction form
    217,431.03/326,257.88 = 99,087.15/x
  3. Step 3: Cross multiply
    217,431.03x = 326,257.88 × 99,087.15
  4. Step 4: Simplify right side
    217,431.03x = 32,327,962,998.81
  5. Step 5: Solve for x
    x = 32,327,962,998.81/217,431.03
  6. Step 6: Final answer
    x = 148,681.46

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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.