Home / 163,439.70-225,545.43-91,818.19

Finding the Fourth Proportional to 163,439.70, 225,545.43 and 91,818.19

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Solution

The fourth proportional to 163,439.70, 225,545.43 and 91,818.19 is: 126,708.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,439.70 : 225,545.43 = 91,818.19 : x
  2. Step 2: Convert to fraction form
    163,439.70/225,545.43 = 91,818.19/x
  3. Step 3: Cross multiply
    163,439.70x = 225,545.43 × 91,818.19
  4. Step 4: Simplify right side
    163,439.70x = 20,709,173,145.37
  5. Step 5: Solve for x
    x = 20,709,173,145.37/163,439.70
  6. Step 6: Final answer
    x = 126,708.34

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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.