Home / 187,149.35-258,278.36-105,497.71

Finding the Fourth Proportional to 187,149.35, 258,278.36 and 105,497.71

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Solution

The fourth proportional to 187,149.35, 258,278.36 and 105,497.71 is: 145,593.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,149.35 : 258,278.36 = 105,497.71 : x
  2. Step 2: Convert to fraction form
    187,149.35/258,278.36 = 105,497.71/x
  3. Step 3: Cross multiply
    187,149.35x = 258,278.36 × 105,497.71
  4. Step 4: Simplify right side
    187,149.35x = 27,247,774,349.37
  5. Step 5: Solve for x
    x = 27,247,774,349.37/187,149.35
  6. Step 6: Final answer
    x = 145,593.74

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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.