Home / 163,932.12-226,243.26-100,312.20

Finding the Fourth Proportional to 163,932.12, 226,243.26 and 100,312.20

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Solution

The fourth proportional to 163,932.12, 226,243.26 and 100,312.20 is: 138,441.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,932.12 : 226,243.26 = 100,312.20 : x
  2. Step 2: Convert to fraction form
    163,932.12/226,243.26 = 100,312.20/x
  3. Step 3: Cross multiply
    163,932.12x = 226,243.26 × 100,312.20
  4. Step 4: Simplify right side
    163,932.12x = 22,694,959,145.77
  5. Step 5: Solve for x
    x = 22,694,959,145.77/163,932.12
  6. Step 6: Final answer
    x = 138,441.20

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1.5x scale

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.