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Finding the Fourth Proportional to 163,574.63, 225,736.63 and 99,947.51

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Solution

The fourth proportional to 163,574.63, 225,736.63 and 99,947.51 is: 137,929.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,574.63 : 225,736.63 = 99,947.51 : x
  2. Step 2: Convert to fraction form
    163,574.63/225,736.63 = 99,947.51/x
  3. Step 3: Cross multiply
    163,574.63x = 225,736.63 × 99,947.51
  4. Step 4: Simplify right side
    163,574.63x = 22,561,814,084.29
  5. Step 5: Solve for x
    x = 22,561,814,084.29/163,574.63
  6. Step 6: Final answer
    x = 137,929.79

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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.