Home / 236,740.50-326,711.61-136,138.50

Finding the Fourth Proportional to 236,740.50, 326,711.61 and 136,138.50

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Solution

The fourth proportional to 236,740.50, 326,711.61 and 136,138.50 is: 187,876.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,740.50 : 326,711.61 = 136,138.50 : x
  2. Step 2: Convert to fraction form
    236,740.50/326,711.61 = 136,138.50/x
  3. Step 3: Cross multiply
    236,740.50x = 326,711.61 × 136,138.50
  4. Step 4: Simplify right side
    236,740.50x = 44,478,028,517.99
  5. Step 5: Solve for x
    x = 44,478,028,517.99/236,740.50
  6. Step 6: Final answer
    x = 187,876.72

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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.