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Finding the Fourth Proportional to 163,351, 225,463.26 and 99,742.51

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Solution

The fourth proportional to 163,351, 225,463.26 and 99,742.51 is: 137,668.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,351 : 225,463.26 = 99,742.51 : x
  2. Step 2: Convert to fraction form
    163,351/225,463.26 = 99,742.51/x
  3. Step 3: Cross multiply
    163,351x = 225,463.26 × 99,742.51
  4. Step 4: Simplify right side
    163,351x = 22,488,271,465.18
  5. Step 5: Solve for x
    x = 22,488,271,465.18/163,351
  6. Step 6: Final answer
    x = 137,668.40

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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.