Home / 156,053.87-215,293.06-90,631.56

Finding the Fourth Proportional to 156,053.87, 215,293.06 and 90,631.56

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Solution

The fourth proportional to 156,053.87, 215,293.06 and 90,631.56 is: 125,035.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,053.87 : 215,293.06 = 90,631.56 : x
  2. Step 2: Convert to fraction form
    156,053.87/215,293.06 = 90,631.56/x
  3. Step 3: Cross multiply
    156,053.87x = 215,293.06 × 90,631.56
  4. Step 4: Simplify right side
    156,053.87x = 19,512,345,884.97
  5. Step 5: Solve for x
    x = 19,512,345,884.97/156,053.87
  6. Step 6: Final answer
    x = 125,035.96

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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.