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Finding the Fourth Proportional to 169,883.21, 234,193.28 and 112,426.28

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Solution

The fourth proportional to 169,883.21, 234,193.28 and 112,426.28 is: 154,985.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,883.21 : 234,193.28 = 112,426.28 : x
  2. Step 2: Convert to fraction form
    169,883.21/234,193.28 = 112,426.28/x
  3. Step 3: Cross multiply
    169,883.21x = 234,193.28 × 112,426.28
  4. Step 4: Simplify right side
    169,883.21x = 26,329,479,127.97
  5. Step 5: Solve for x
    x = 26,329,479,127.97/169,883.21
  6. Step 6: Final answer
    x = 154,985.76

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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.