Home / 123,905.44-185,880.56-45,130.24

Finding the Fourth Proportional to 123,905.44, 185,880.56 and 45,130.24

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Solution

The fourth proportional to 123,905.44, 185,880.56 and 45,130.24 is: 67,703.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,905.44 : 185,880.56 = 45,130.24 : x
  2. Step 2: Convert to fraction form
    123,905.44/185,880.56 = 45,130.24/x
  3. Step 3: Cross multiply
    123,905.44x = 185,880.56 × 45,130.24
  4. Step 4: Simplify right side
    123,905.44x = 8,388,834,284.13
  5. Step 5: Solve for x
    x = 8,388,834,284.13/123,905.44
  6. Step 6: Final answer
    x = 67,703.52

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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.