Home / 121,210.48-181,840.38-51,089.68

Finding the Fourth Proportional to 121,210.48, 181,840.38 and 51,089.68

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Solution

The fourth proportional to 121,210.48, 181,840.38 and 51,089.68 is: 76,644.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,210.48 : 181,840.38 = 51,089.68 : x
  2. Step 2: Convert to fraction form
    121,210.48/181,840.38 = 51,089.68/x
  3. Step 3: Cross multiply
    121,210.48x = 181,840.38 × 51,089.68
  4. Step 4: Simplify right side
    121,210.48x = 9,290,166,825.28
  5. Step 5: Solve for x
    x = 9,290,166,825.28/121,210.48
  6. Step 6: Final answer
    x = 76,644.91

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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.