Home / 122,511.16-184,869.49-118,117.72

Finding the Fourth Proportional to 122,511.16, 184,869.49 and 118,117.72

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Solution

The fourth proportional to 122,511.16, 184,869.49 and 118,117.72 is: 178,239.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,511.16 : 184,869.49 = 118,117.72 : x
  2. Step 2: Convert to fraction form
    122,511.16/184,869.49 = 118,117.72/x
  3. Step 3: Cross multiply
    122,511.16x = 184,869.49 × 118,117.72
  4. Step 4: Simplify right side
    122,511.16x = 21,836,362,656.36
  5. Step 5: Solve for x
    x = 21,836,362,656.36/122,511.16
  6. Step 6: Final answer
    x = 178,239.78

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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.