Home / 122,721.40-184,083.80-80,869.40

Finding the Fourth Proportional to 122,721.40, 184,083.80 and 80,869.40

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Solution

The fourth proportional to 122,721.40, 184,083.80 and 80,869.40 is: 121,305.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,721.40 : 184,083.80 = 80,869.40 : x
  2. Step 2: Convert to fraction form
    122,721.40/184,083.80 = 80,869.40/x
  3. Step 3: Cross multiply
    122,721.40x = 184,083.80 × 80,869.40
  4. Step 4: Simplify right side
    122,721.40x = 14,886,746,455.72
  5. Step 5: Solve for x
    x = 14,886,746,455.72/122,721.40
  6. Step 6: Final answer
    x = 121,305.22

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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.