Home / 121,218.96-181,743.90-53,714.28

Finding the Fourth Proportional to 121,218.96, 181,743.90 and 53,714.28

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Solution

The fourth proportional to 121,218.96, 181,743.90 and 53,714.28 is: 80,533.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,218.96 : 181,743.90 = 53,714.28 : x
  2. Step 2: Convert to fraction form
    121,218.96/181,743.90 = 53,714.28/x
  3. Step 3: Cross multiply
    121,218.96x = 181,743.90 × 53,714.28
  4. Step 4: Simplify right side
    121,218.96x = 9,762,242,732.89
  5. Step 5: Solve for x
    x = 9,762,242,732.89/121,218.96
  6. Step 6: Final answer
    x = 80,533.96

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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.