Home / 147,621.71-203,816-113,570.12

Finding the Fourth Proportional to 147,621.71, 203,816 and 113,570.12

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Solution

The fourth proportional to 147,621.71, 203,816 and 113,570.12 is: 156,802.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,621.71 : 203,816 = 113,570.12 : x
  2. Step 2: Convert to fraction form
    147,621.71/203,816 = 113,570.12/x
  3. Step 3: Cross multiply
    147,621.71x = 203,816 × 113,570.12
  4. Step 4: Simplify right side
    147,621.71x = 23,147,407,577.92
  5. Step 5: Solve for x
    x = 23,147,407,577.92/147,621.71
  6. Step 6: Final answer
    x = 156,802.19

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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.