Home / 145,680.12-200,765.79-105,324.71

Finding the Fourth Proportional to 145,680.12, 200,765.79 and 105,324.71

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Solution

The fourth proportional to 145,680.12, 200,765.79 and 105,324.71 is: 145,150.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,680.12 : 200,765.79 = 105,324.71 : x
  2. Step 2: Convert to fraction form
    145,680.12/200,765.79 = 105,324.71/x
  3. Step 3: Cross multiply
    145,680.12x = 200,765.79 × 105,324.71
  4. Step 4: Simplify right side
    145,680.12x = 21,145,597,605.84
  5. Step 5: Solve for x
    x = 21,145,597,605.84/145,680.12
  6. Step 6: Final answer
    x = 145,150.88

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1.5x scale

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.