Home / 187,990.38-259,426.14-103,107.24

Finding the Fourth Proportional to 187,990.38, 259,426.14 and 103,107.24

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Solution

The fourth proportional to 187,990.38, 259,426.14 and 103,107.24 is: 142,287.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,990.38 : 259,426.14 = 103,107.24 : x
  2. Step 2: Convert to fraction form
    187,990.38/259,426.14 = 103,107.24/x
  3. Step 3: Cross multiply
    187,990.38x = 259,426.14 × 103,107.24
  4. Step 4: Simplify right side
    187,990.38x = 26,748,713,279.25
  5. Step 5: Solve for x
    x = 26,748,713,279.25/187,990.38
  6. Step 6: Final answer
    x = 142,287.67

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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.