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Finding the Fourth Proportional to 163,458.27, 225,567 and 90,860.76

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Solution

The fourth proportional to 163,458.27, 225,567 and 90,860.76 is: 125,384.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,458.27 : 225,567 = 90,860.76 : x
  2. Step 2: Convert to fraction form
    163,458.27/225,567 = 90,860.76/x
  3. Step 3: Cross multiply
    163,458.27x = 225,567 × 90,860.76
  4. Step 4: Simplify right side
    163,458.27x = 20,495,189,050.92
  5. Step 5: Solve for x
    x = 20,495,189,050.92/163,458.27
  6. Step 6: Final answer
    x = 125,384.84

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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.