Home / 153,973.04-231,174.36-79,156.64

Finding the Fourth Proportional to 153,973.04, 231,174.36 and 79,156.64

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Solution

The fourth proportional to 153,973.04, 231,174.36 and 79,156.64 is: 118,845.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,973.04 : 231,174.36 = 79,156.64 : x
  2. Step 2: Convert to fraction form
    153,973.04/231,174.36 = 79,156.64/x
  3. Step 3: Cross multiply
    153,973.04x = 231,174.36 × 79,156.64
  4. Step 4: Simplify right side
    153,973.04x = 18,298,985,591.75
  5. Step 5: Solve for x
    x = 18,298,985,591.75/153,973.04
  6. Step 6: Final answer
    x = 118,845.39

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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.