Home / 236,855.64-326,856.87-129,423.37

Finding the Fourth Proportional to 236,855.64, 326,856.87 and 129,423.37

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Solution

The fourth proportional to 236,855.64, 326,856.87 and 129,423.37 is: 178,602.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,855.64 : 326,856.87 = 129,423.37 : x
  2. Step 2: Convert to fraction form
    236,855.64/326,856.87 = 129,423.37/x
  3. Step 3: Cross multiply
    236,855.64x = 326,856.87 × 129,423.37
  4. Step 4: Simplify right side
    236,855.64x = 42,302,917,418.77
  5. Step 5: Solve for x
    x = 42,302,917,418.77/236,855.64
  6. Step 6: Final answer
    x = 178,602.11

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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.