Home / 170,904.15-256,448.16-71,133.21

Finding the Fourth Proportional to 170,904.15, 256,448.16 and 71,133.21

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Solution

The fourth proportional to 170,904.15, 256,448.16 and 71,133.21 is: 106,738.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,904.15 : 256,448.16 = 71,133.21 : x
  2. Step 2: Convert to fraction form
    170,904.15/256,448.16 = 71,133.21/x
  3. Step 3: Cross multiply
    170,904.15x = 256,448.16 × 71,133.21
  4. Step 4: Simplify right side
    170,904.15x = 18,241,980,819.39
  5. Step 5: Solve for x
    x = 18,241,980,819.39/170,904.15
  6. Step 6: Final answer
    x = 106,738.08

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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.