Home / 109,623.20-164,434.80-47,293.70

Finding the Fourth Proportional to 109,623.20, 164,434.80 and 47,293.70

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Solution

The fourth proportional to 109,623.20, 164,434.80 and 47,293.70 is: 70,940.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,623.20 : 164,434.80 = 47,293.70 : x
  2. Step 2: Convert to fraction form
    109,623.20/164,434.80 = 47,293.70/x
  3. Step 3: Cross multiply
    109,623.20x = 164,434.80 × 47,293.70
  4. Step 4: Simplify right side
    109,623.20x = 7,776,730,100.76
  5. Step 5: Solve for x
    x = 7,776,730,100.76/109,623.20
  6. Step 6: Final answer
    x = 70,940.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.