Home / 122,439.61-168,953.69-68,730.53

Finding the Fourth Proportional to 122,439.61, 168,953.69 and 68,730.53

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Solution

The fourth proportional to 122,439.61, 168,953.69 and 68,730.53 is: 94,840.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,439.61 : 168,953.69 = 68,730.53 : x
  2. Step 2: Convert to fraction form
    122,439.61/168,953.69 = 68,730.53/x
  3. Step 3: Cross multiply
    122,439.61x = 168,953.69 × 68,730.53
  4. Step 4: Simplify right side
    122,439.61x = 11,612,277,253.37
  5. Step 5: Solve for x
    x = 11,612,277,253.37/122,439.61
  6. Step 6: Final answer
    x = 94,840.86

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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.