Home / 121,207.12-181,821.04-36,986.22

Finding the Fourth Proportional to 121,207.12, 181,821.04 and 36,986.22

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Solution

The fourth proportional to 121,207.12, 181,821.04 and 36,986.22 is: 55,482.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,207.12 : 181,821.04 = 36,986.22 : x
  2. Step 2: Convert to fraction form
    121,207.12/181,821.04 = 36,986.22/x
  3. Step 3: Cross multiply
    121,207.12x = 181,821.04 × 36,986.22
  4. Step 4: Simplify right side
    121,207.12x = 6,724,872,893.60
  5. Step 5: Solve for x
    x = 6,724,872,893.60/121,207.12
  6. Step 6: Final answer
    x = 55,482.49

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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.