Home / 169,308.40-233,655.13-100,438.63

Finding the Fourth Proportional to 169,308.40, 233,655.13 and 100,438.63

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Solution

The fourth proportional to 169,308.40, 233,655.13 and 100,438.63 is: 138,610.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,308.40 : 233,655.13 = 100,438.63 : x
  2. Step 2: Convert to fraction form
    169,308.40/233,655.13 = 100,438.63/x
  3. Step 3: Cross multiply
    169,308.40x = 233,655.13 × 100,438.63
  4. Step 4: Simplify right side
    169,308.40x = 23,468,002,005.39
  5. Step 5: Solve for x
    x = 23,468,002,005.39/169,308.40
  6. Step 6: Final answer
    x = 138,610.97

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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.