Home / 122,143.65-168,576.04-68,432.30

Finding the Fourth Proportional to 122,143.65, 168,576.04 and 68,432.30

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Solution

The fourth proportional to 122,143.65, 168,576.04 and 68,432.30 is: 94,446.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,143.65 : 168,576.04 = 68,432.30 : x
  2. Step 2: Convert to fraction form
    122,143.65/168,576.04 = 68,432.30/x
  3. Step 3: Cross multiply
    122,143.65x = 168,576.04 × 68,432.30
  4. Step 4: Simplify right side
    122,143.65x = 11,536,046,142.09
  5. Step 5: Solve for x
    x = 11,536,046,142.09/122,143.65
  6. Step 6: Final answer
    x = 94,446.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.