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Finding the Fourth Proportional to 121,089.99, 181,641.81 and 36,852.90

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Solution

The fourth proportional to 121,089.99, 181,641.81 and 36,852.90 is: 55,281.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,089.99 : 181,641.81 = 36,852.90 : x
  2. Step 2: Convert to fraction form
    121,089.99/181,641.81 = 36,852.90/x
  3. Step 3: Cross multiply
    121,089.99x = 181,641.81 × 36,852.90
  4. Step 4: Simplify right side
    121,089.99x = 6,694,027,459.75
  5. Step 5: Solve for x
    x = 6,694,027,459.75/121,089.99
  6. Step 6: Final answer
    x = 55,281.43

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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.