Home / 113,977.86-171,001.35-80,762.28

Finding the Fourth Proportional to 113,977.86, 171,001.35 and 80,762.28

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Solution

The fourth proportional to 113,977.86, 171,001.35 and 80,762.28 is: 121,167.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,977.86 : 171,001.35 = 80,762.28 : x
  2. Step 2: Convert to fraction form
    113,977.86/171,001.35 = 80,762.28/x
  3. Step 3: Cross multiply
    113,977.86x = 171,001.35 × 80,762.28
  4. Step 4: Simplify right side
    113,977.86x = 13,810,458,909.08
  5. Step 5: Solve for x
    x = 13,810,458,909.08/113,977.86
  6. Step 6: Final answer
    x = 121,167.91

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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.