Home / 153,161.04-211,355.82-85,174.50

Finding the Fourth Proportional to 153,161.04, 211,355.82 and 85,174.50

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Solution

The fourth proportional to 153,161.04, 211,355.82 and 85,174.50 is: 117,537.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,161.04 : 211,355.82 = 85,174.50 : x
  2. Step 2: Convert to fraction form
    153,161.04/211,355.82 = 85,174.50/x
  3. Step 3: Cross multiply
    153,161.04x = 211,355.82 × 85,174.50
  4. Step 4: Simplify right side
    153,161.04x = 18,002,126,290.59
  5. Step 5: Solve for x
    x = 18,002,126,290.59/153,161.04
  6. Step 6: Final answer
    x = 117,537.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.