Home / 159,280.20-219,757.16-90,358.28

Finding the Fourth Proportional to 159,280.20, 219,757.16 and 90,358.28

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Solution

The fourth proportional to 159,280.20, 219,757.16 and 90,358.28 is: 124,666.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,280.20 : 219,757.16 = 90,358.28 : x
  2. Step 2: Convert to fraction form
    159,280.20/219,757.16 = 90,358.28/x
  3. Step 3: Cross multiply
    159,280.20x = 219,757.16 × 90,358.28
  4. Step 4: Simplify right side
    159,280.20x = 19,856,878,995.28
  5. Step 5: Solve for x
    x = 19,856,878,995.28/159,280.20
  6. Step 6: Final answer
    x = 124,666.34

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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.