Home / 145,747.20-218,102.40-101,164.80

Finding the Fourth Proportional to 145,747.20, 218,102.40 and 101,164.80

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Solution

The fourth proportional to 145,747.20, 218,102.40 and 101,164.80 is: 151,387.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,747.20 : 218,102.40 = 101,164.80 : x
  2. Step 2: Convert to fraction form
    145,747.20/218,102.40 = 101,164.80/x
  3. Step 3: Cross multiply
    145,747.20x = 218,102.40 × 101,164.80
  4. Step 4: Simplify right side
    145,747.20x = 22,064,285,675.52
  5. Step 5: Solve for x
    x = 22,064,285,675.52/145,747.20
  6. Step 6: Final answer
    x = 151,387.37

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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.