Home / 121,023.20-181,534.80-36,783.20

Finding the Fourth Proportional to 121,023.20, 181,534.80 and 36,783.20

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Solution

The fourth proportional to 121,023.20, 181,534.80 and 36,783.20 is: 55,174.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,023.20 : 181,534.80 = 36,783.20 : x
  2. Step 2: Convert to fraction form
    121,023.20/181,534.80 = 36,783.20/x
  3. Step 3: Cross multiply
    121,023.20x = 181,534.80 × 36,783.20
  4. Step 4: Simplify right side
    121,023.20x = 6,677,430,855.36
  5. Step 5: Solve for x
    x = 6,677,430,855.36/121,023.20
  6. Step 6: Final answer
    x = 55,174.80

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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.