Home / 121,345.20-181,985.40-37,105.20

Finding the Fourth Proportional to 121,345.20, 181,985.40 and 37,105.20

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Solution

The fourth proportional to 121,345.20, 181,985.40 and 37,105.20 is: 55,647.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,345.20 : 181,985.40 = 37,105.20 : x
  2. Step 2: Convert to fraction form
    121,345.20/181,985.40 = 37,105.20/x
  3. Step 3: Cross multiply
    121,345.20x = 181,985.40 × 37,105.20
  4. Step 4: Simplify right side
    121,345.20x = 6,752,604,664.08
  5. Step 5: Solve for x
    x = 6,752,604,664.08/121,345.20
  6. Step 6: Final answer
    x = 55,647.89

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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.