Home / 220,985.27-304,951.61-135,088.11

Finding the Fourth Proportional to 220,985.27, 304,951.61 and 135,088.11

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Solution

The fourth proportional to 220,985.27, 304,951.61 and 135,088.11 is: 186,416.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,985.27 : 304,951.61 = 135,088.11 : x
  2. Step 2: Convert to fraction form
    220,985.27/304,951.61 = 135,088.11/x
  3. Step 3: Cross multiply
    220,985.27x = 304,951.61 × 135,088.11
  4. Step 4: Simplify right side
    220,985.27x = 41,195,335,960.92
  5. Step 5: Solve for x
    x = 41,195,335,960.92/220,985.27
  6. Step 6: Final answer
    x = 186,416.66

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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.