Home / 187,715.72-258,982.94-107,085.08

Finding the Fourth Proportional to 187,715.72, 258,982.94 and 107,085.08

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Solution

The fourth proportional to 187,715.72, 258,982.94 and 107,085.08 is: 147,740.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,715.72 : 258,982.94 = 107,085.08 : x
  2. Step 2: Convert to fraction form
    187,715.72/258,982.94 = 107,085.08/x
  3. Step 3: Cross multiply
    187,715.72x = 258,982.94 × 107,085.08
  4. Step 4: Simplify right side
    187,715.72x = 27,733,208,848.54
  5. Step 5: Solve for x
    x = 27,733,208,848.54/187,715.72
  6. Step 6: Final answer
    x = 147,740.47

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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.