Home / 122,439.12-168,952.99-68,730.04

Finding the Fourth Proportional to 122,439.12, 168,952.99 and 68,730.04

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Solution

The fourth proportional to 122,439.12, 168,952.99 and 68,730.04 is: 94,840.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,439.12 : 168,952.99 = 68,730.04 : x
  2. Step 2: Convert to fraction form
    122,439.12/168,952.99 = 68,730.04/x
  3. Step 3: Cross multiply
    122,439.12x = 168,952.99 × 68,730.04
  4. Step 4: Simplify right side
    122,439.12x = 11,612,145,760.82
  5. Step 5: Solve for x
    x = 11,612,145,760.82/122,439.12
  6. Step 6: Final answer
    x = 94,840.16

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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.