Home / 123,764.40-185,646.60-30,270.15

Finding the Fourth Proportional to 123,764.40, 185,646.60 and 30,270.15

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Solution

The fourth proportional to 123,764.40, 185,646.60 and 30,270.15 is: 45,405.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,764.40 : 185,646.60 = 30,270.15 : x
  2. Step 2: Convert to fraction form
    123,764.40/185,646.60 = 30,270.15/x
  3. Step 3: Cross multiply
    123,764.40x = 185,646.60 × 30,270.15
  4. Step 4: Simplify right side
    123,764.40x = 5,619,550,428.99
  5. Step 5: Solve for x
    x = 5,619,550,428.99/123,764.40
  6. Step 6: Final answer
    x = 45,405.23

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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.