Home / 236,717.82-326,681.19-129,288.72

Finding the Fourth Proportional to 236,717.82, 326,681.19 and 129,288.72

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Solution

The fourth proportional to 236,717.82, 326,681.19 and 129,288.72 is: 178,424.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,717.82 : 326,681.19 = 129,288.72 : x
  2. Step 2: Convert to fraction form
    236,717.82/326,681.19 = 129,288.72/x
  3. Step 3: Cross multiply
    236,717.82x = 326,681.19 × 129,288.72
  4. Step 4: Simplify right side
    236,717.82x = 42,236,192,903.18
  5. Step 5: Solve for x
    x = 42,236,192,903.18/236,717.82
  6. Step 6: Final answer
    x = 178,424.22

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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.