Home / 109,213.80-150,660-63,862.08

Finding the Fourth Proportional to 109,213.80, 150,660 and 63,862.08

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Solution

The fourth proportional to 109,213.80, 150,660 and 63,862.08 is: 88,097.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,213.80 : 150,660 = 63,862.08 : x
  2. Step 2: Convert to fraction form
    109,213.80/150,660 = 63,862.08/x
  3. Step 3: Cross multiply
    109,213.80x = 150,660 × 63,862.08
  4. Step 4: Simplify right side
    109,213.80x = 9,621,460,972.80
  5. Step 5: Solve for x
    x = 9,621,460,972.80/109,213.80
  6. Step 6: Final answer
    x = 88,097.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.