Home / 236,837.72-326,838.34-129,407.74

Finding the Fourth Proportional to 236,837.72, 326,838.34 and 129,407.74

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Solution

The fourth proportional to 236,837.72, 326,838.34 and 129,407.74 is: 178,583.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,837.72 : 326,838.34 = 129,407.74 : x
  2. Step 2: Convert to fraction form
    236,837.72/326,838.34 = 129,407.74/x
  3. Step 3: Cross multiply
    236,837.72x = 326,838.34 × 129,407.74
  4. Step 4: Simplify right side
    236,837.72x = 42,295,412,107.88
  5. Step 5: Solve for x
    x = 42,295,412,107.88/236,837.72
  6. Step 6: Final answer
    x = 178,583.93

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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.