Home / 163,917.12-226,222.56-100,297.20

Finding the Fourth Proportional to 163,917.12, 226,222.56 and 100,297.20

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Solution

The fourth proportional to 163,917.12, 226,222.56 and 100,297.20 is: 138,420.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,917.12 : 226,222.56 = 100,297.20 : x
  2. Step 2: Convert to fraction form
    163,917.12/226,222.56 = 100,297.20/x
  3. Step 3: Cross multiply
    163,917.12x = 226,222.56 × 100,297.20
  4. Step 4: Simplify right side
    163,917.12x = 22,689,489,344.83
  5. Step 5: Solve for x
    x = 22,689,489,344.83/163,917.12
  6. Step 6: Final answer
    x = 138,420.50

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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.