Home / 187,341.29-258,216.09-142,004.78

Finding the Fourth Proportional to 187,341.29, 258,216.09 and 142,004.78

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Solution

The fourth proportional to 187,341.29, 258,216.09 and 142,004.78 is: 195,727.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,341.29 : 258,216.09 = 142,004.78 : x
  2. Step 2: Convert to fraction form
    187,341.29/258,216.09 = 142,004.78/x
  3. Step 3: Cross multiply
    187,341.29x = 258,216.09 × 142,004.78
  4. Step 4: Simplify right side
    187,341.29x = 36,667,918,197.62
  5. Step 5: Solve for x
    x = 36,667,918,197.62/187,341.29
  6. Step 6: Final answer
    x = 195,727.91

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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.