Home / 109,721.20-164,581.80-30,848.80

Finding the Fourth Proportional to 109,721.20, 164,581.80 and 30,848.80

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Solution

The fourth proportional to 109,721.20, 164,581.80 and 30,848.80 is: 46,273.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,721.20 : 164,581.80 = 30,848.80 : x
  2. Step 2: Convert to fraction form
    109,721.20/164,581.80 = 30,848.80/x
  3. Step 3: Cross multiply
    109,721.20x = 164,581.80 × 30,848.80
  4. Step 4: Simplify right side
    109,721.20x = 5,077,151,031.84
  5. Step 5: Solve for x
    x = 5,077,151,031.84/109,721.20
  6. Step 6: Final answer
    x = 46,273.20

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1.5x scale

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.