Home / 170,824.23-256,267.43-85,479.66

Finding the Fourth Proportional to 170,824.23, 256,267.43 and 85,479.66

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Solution

The fourth proportional to 170,824.23, 256,267.43 and 85,479.66 is: 128,235.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,824.23 : 256,267.43 = 85,479.66 : x
  2. Step 2: Convert to fraction form
    170,824.23/256,267.43 = 85,479.66/x
  3. Step 3: Cross multiply
    170,824.23x = 256,267.43 × 85,479.66
  4. Step 4: Simplify right side
    170,824.23x = 21,905,653,639.84
  5. Step 5: Solve for x
    x = 21,905,653,639.84/170,824.23
  6. Step 6: Final answer
    x = 128,235.05

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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.