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Finding the Fourth Proportional to 121,113.48, 181,407.66 and 58,653

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Solution

The fourth proportional to 121,113.48, 181,407.66 and 58,653 is: 87,852.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,113.48 : 181,407.66 = 58,653 : x
  2. Step 2: Convert to fraction form
    121,113.48/181,407.66 = 58,653/x
  3. Step 3: Cross multiply
    121,113.48x = 181,407.66 × 58,653
  4. Step 4: Simplify right side
    121,113.48x = 10,640,103,481.98
  5. Step 5: Solve for x
    x = 10,640,103,481.98/121,113.48
  6. Step 6: Final answer
    x = 87,852.35

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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.