Home / 236,904.78-326,928.62-129,474.78

Finding the Fourth Proportional to 236,904.78, 326,928.62 and 129,474.78

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Solution

The fourth proportional to 236,904.78, 326,928.62 and 129,474.78 is: 178,675.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,904.78 : 326,928.62 = 129,474.78 : x
  2. Step 2: Convert to fraction form
    236,904.78/326,928.62 = 129,474.78/x
  3. Step 3: Cross multiply
    236,904.78x = 326,928.62 × 129,474.78
  4. Step 4: Simplify right side
    236,904.78x = 42,329,011,473.89
  5. Step 5: Solve for x
    x = 42,329,011,473.89/236,904.78
  6. Step 6: Final answer
    x = 178,675.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.