Home / 121,108.50-181,699.74-61,986.06

Finding the Fourth Proportional to 121,108.50, 181,699.74 and 61,986.06

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Solution

The fourth proportional to 121,108.50, 181,699.74 and 61,986.06 is: 92,998.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,108.50 : 181,699.74 = 61,986.06 : x
  2. Step 2: Convert to fraction form
    121,108.50/181,699.74 = 61,986.06/x
  3. Step 3: Cross multiply
    121,108.50x = 181,699.74 × 61,986.06
  4. Step 4: Simplify right side
    121,108.50x = 11,262,850,985.62
  5. Step 5: Solve for x
    x = 11,262,850,985.62/121,108.50
  6. Step 6: Final answer
    x = 92,998.02

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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.