Home / 147,289.76-203,274-90,734.24

Finding the Fourth Proportional to 147,289.76, 203,274 and 90,734.24

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Solution

The fourth proportional to 147,289.76, 203,274 and 90,734.24 is: 125,221.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,289.76 : 203,274 = 90,734.24 : x
  2. Step 2: Convert to fraction form
    147,289.76/203,274 = 90,734.24/x
  3. Step 3: Cross multiply
    147,289.76x = 203,274 × 90,734.24
  4. Step 4: Simplify right side
    147,289.76x = 18,443,911,901.76
  5. Step 5: Solve for x
    x = 18,443,911,901.76/147,289.76
  6. Step 6: Final answer
    x = 125,221.96

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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.