Home / 170,945.79-256,493.87-90,964.91

Finding the Fourth Proportional to 170,945.79, 256,493.87 and 90,964.91

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Solution

The fourth proportional to 170,945.79, 256,493.87 and 90,964.91 is: 136,487.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,945.79 : 256,493.87 = 90,964.91 : x
  2. Step 2: Convert to fraction form
    170,945.79/256,493.87 = 90,964.91/x
  3. Step 3: Cross multiply
    170,945.79x = 256,493.87 × 90,964.91
  4. Step 4: Simplify right side
    170,945.79x = 23,331,940,062.81
  5. Step 5: Solve for x
    x = 23,331,940,062.81/170,945.79
  6. Step 6: Final answer
    x = 136,487.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.