Home / 143,206.68-197,629.56-86,585.52

Finding the Fourth Proportional to 143,206.68, 197,629.56 and 86,585.52

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Solution

The fourth proportional to 143,206.68, 197,629.56 and 86,585.52 is: 119,490.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,206.68 : 197,629.56 = 86,585.52 : x
  2. Step 2: Convert to fraction form
    143,206.68/197,629.56 = 86,585.52/x
  3. Step 3: Cross multiply
    143,206.68x = 197,629.56 × 86,585.52
  4. Step 4: Simplify right side
    143,206.68x = 17,111,858,219.97
  5. Step 5: Solve for x
    x = 17,111,858,219.97/143,206.68
  6. Step 6: Final answer
    x = 119,490.64

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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.