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Finding the Fourth Proportional to 122,121.16, 184,123.51 and 121,363

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Solution

The fourth proportional to 122,121.16, 184,123.51 and 121,363 is: 182,980.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,121.16 : 184,123.51 = 121,363 : x
  2. Step 2: Convert to fraction form
    122,121.16/184,123.51 = 121,363/x
  3. Step 3: Cross multiply
    122,121.16x = 184,123.51 × 121,363
  4. Step 4: Simplify right side
    122,121.16x = 22,345,781,544.13
  5. Step 5: Solve for x
    x = 22,345,781,544.13/122,121.16
  6. Step 6: Final answer
    x = 182,980.42

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.