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Finding the Fourth Proportional to 170,670.63, 256,120.22 and 70,830.91

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Solution

The fourth proportional to 170,670.63, 256,120.22 and 70,830.91 is: 106,293.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,670.63 : 256,120.22 = 70,830.91 : x
  2. Step 2: Convert to fraction form
    170,670.63/256,120.22 = 70,830.91/x
  3. Step 3: Cross multiply
    170,670.63x = 256,120.22 × 70,830.91
  4. Step 4: Simplify right side
    170,670.63x = 18,141,228,252.00
  5. Step 5: Solve for x
    x = 18,141,228,252.00/170,670.63
  6. Step 6: Final answer
    x = 106,293.79

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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.