Home / 146,729.39-220,064.93-71,817.35

Finding the Fourth Proportional to 146,729.39, 220,064.93 and 71,817.35

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Solution

The fourth proportional to 146,729.39, 220,064.93 and 71,817.35 is: 107,711.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,729.39 : 220,064.93 = 71,817.35 : x
  2. Step 2: Convert to fraction form
    146,729.39/220,064.93 = 71,817.35/x
  3. Step 3: Cross multiply
    146,729.39x = 220,064.93 × 71,817.35
  4. Step 4: Simplify right side
    146,729.39x = 15,804,479,741.45
  5. Step 5: Solve for x
    x = 15,804,479,741.45/146,729.39
  6. Step 6: Final answer
    x = 107,711.75

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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.