Home / 217,525.89-326,304.39-91,038.78

Finding the Fourth Proportional to 217,525.89, 326,304.39 and 91,038.78

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Solution

The fourth proportional to 217,525.89, 326,304.39 and 91,038.78 is: 136,564.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,525.89 : 326,304.39 = 91,038.78 : x
  2. Step 2: Convert to fraction form
    217,525.89/326,304.39 = 91,038.78/x
  3. Step 3: Cross multiply
    217,525.89x = 326,304.39 × 91,038.78
  4. Step 4: Simplify right side
    217,525.89x = 29,706,353,574.24
  5. Step 5: Solve for x
    x = 29,706,353,574.24/217,525.89
  6. Step 6: Final answer
    x = 136,564.68

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1.5x scale

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.