Home / 187,880.07-259,269.13-107,305.93

Finding the Fourth Proportional to 187,880.07, 259,269.13 and 107,305.93

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Solution

The fourth proportional to 187,880.07, 259,269.13 and 107,305.93 is: 148,079.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,880.07 : 259,269.13 = 107,305.93 : x
  2. Step 2: Convert to fraction form
    187,880.07/259,269.13 = 107,305.93/x
  3. Step 3: Cross multiply
    187,880.07x = 259,269.13 × 107,305.93
  4. Step 4: Simplify right side
    187,880.07x = 27,821,113,282.07
  5. Step 5: Solve for x
    x = 27,821,113,282.07/187,880.07
  6. Step 6: Final answer
    x = 148,079.11

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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.