Home / 163,860.76-226,078.86-100,133.20

Finding the Fourth Proportional to 163,860.76, 226,078.86 and 100,133.20

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Solution

The fourth proportional to 163,860.76, 226,078.86 and 100,133.20 is: 138,153.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,860.76 : 226,078.86 = 100,133.20 : x
  2. Step 2: Convert to fraction form
    163,860.76/226,078.86 = 100,133.20/x
  3. Step 3: Cross multiply
    163,860.76x = 226,078.86 × 100,133.20
  4. Step 4: Simplify right side
    163,860.76x = 22,637,999,704.15
  5. Step 5: Solve for x
    x = 22,637,999,704.15/163,860.76
  6. Step 6: Final answer
    x = 138,153.88

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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.