Home / 109,345.68-150,921.60-71,598

Finding the Fourth Proportional to 109,345.68, 150,921.60 and 71,598

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Solution

The fourth proportional to 109,345.68, 150,921.60 and 71,598 is: 98,821.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,345.68 : 150,921.60 = 71,598 : x
  2. Step 2: Convert to fraction form
    109,345.68/150,921.60 = 71,598/x
  3. Step 3: Cross multiply
    109,345.68x = 150,921.60 × 71,598
  4. Step 4: Simplify right side
    109,345.68x = 10,805,684,716.80
  5. Step 5: Solve for x
    x = 10,805,684,716.80/109,345.68
  6. Step 6: Final answer
    x = 98,821.32

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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.