Home / 188,306.13-259,907.28-107,780.13

Finding the Fourth Proportional to 188,306.13, 259,907.28 and 107,780.13

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Solution

The fourth proportional to 188,306.13, 259,907.28 and 107,780.13 is: 148,762.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,306.13 : 259,907.28 = 107,780.13 : x
  2. Step 2: Convert to fraction form
    188,306.13/259,907.28 = 107,780.13/x
  3. Step 3: Cross multiply
    188,306.13x = 259,907.28 × 107,780.13
  4. Step 4: Simplify right side
    188,306.13x = 28,012,840,426.35
  5. Step 5: Solve for x
    x = 28,012,840,426.35/188,306.13
  6. Step 6: Final answer
    x = 148,762.23

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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.