Home / 149,139.72-223,662.16-49,281.28

Finding the Fourth Proportional to 149,139.72, 223,662.16 and 49,281.28

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Solution

The fourth proportional to 149,139.72, 223,662.16 and 49,281.28 is: 73,906.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,139.72 : 223,662.16 = 49,281.28 : x
  2. Step 2: Convert to fraction form
    149,139.72/223,662.16 = 49,281.28/x
  3. Step 3: Cross multiply
    149,139.72x = 223,662.16 × 49,281.28
  4. Step 4: Simplify right side
    149,139.72x = 11,022,357,532.36
  5. Step 5: Solve for x
    x = 11,022,357,532.36/149,139.72
  6. Step 6: Final answer
    x = 73,906.25

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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.