Home / 170,807.40-256,366.58-90,912.44

Finding the Fourth Proportional to 170,807.40, 256,366.58 and 90,912.44

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Solution

The fourth proportional to 170,807.40, 256,366.58 and 90,912.44 is: 136,451.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,807.40 : 256,366.58 = 90,912.44 : x
  2. Step 2: Convert to fraction form
    170,807.40/256,366.58 = 90,912.44/x
  3. Step 3: Cross multiply
    170,807.40x = 256,366.58 × 90,912.44
  4. Step 4: Simplify right side
    170,807.40x = 23,306,909,585.86
  5. Step 5: Solve for x
    x = 23,306,909,585.86/170,807.40
  6. Step 6: Final answer
    x = 136,451.40

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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.