Home / 113,172.12-169,739.96-38,290.86

Finding the Fourth Proportional to 113,172.12, 169,739.96 and 38,290.86

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Solution

The fourth proportional to 113,172.12, 169,739.96 and 38,290.86 is: 57,430.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,172.12 : 169,739.96 = 38,290.86 : x
  2. Step 2: Convert to fraction form
    113,172.12/169,739.96 = 38,290.86/x
  3. Step 3: Cross multiply
    113,172.12x = 169,739.96 × 38,290.86
  4. Step 4: Simplify right side
    113,172.12x = 6,499,488,853.31
  5. Step 5: Solve for x
    x = 6,499,488,853.31/113,172.12
  6. Step 6: Final answer
    x = 57,430.12

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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.