Home / 103,660.10-143,049.21-58,338.08

Finding the Fourth Proportional to 103,660.10, 143,049.21 and 58,338.08

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Solution

The fourth proportional to 103,660.10, 143,049.21 and 58,338.08 is: 80,505.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,660.10 : 143,049.21 = 58,338.08 : x
  2. Step 2: Convert to fraction form
    103,660.10/143,049.21 = 58,338.08/x
  3. Step 3: Cross multiply
    103,660.10x = 143,049.21 × 58,338.08
  4. Step 4: Simplify right side
    103,660.10x = 8,345,216,256.92
  5. Step 5: Solve for x
    x = 8,345,216,256.92/103,660.10
  6. Step 6: Final answer
    x = 80,505.58

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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.