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Finding the Fourth Proportional to 163,614.80, 225,931.56 and 103,293.20

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Solution

The fourth proportional to 163,614.80, 225,931.56 and 103,293.20 is: 142,634.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,614.80 : 225,931.56 = 103,293.20 : x
  2. Step 2: Convert to fraction form
    163,614.80/225,931.56 = 103,293.20/x
  3. Step 3: Cross multiply
    163,614.80x = 225,931.56 × 103,293.20
  4. Step 4: Simplify right side
    163,614.80x = 23,337,193,813.39
  5. Step 5: Solve for x
    x = 23,337,193,813.39/163,614.80
  6. Step 6: Final answer
    x = 142,634.98

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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.