Home / 187,415.28-258,790.68-133,864.56

Finding the Fourth Proportional to 187,415.28, 258,790.68 and 133,864.56

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Solution

The fourth proportional to 187,415.28, 258,790.68 and 133,864.56 is: 184,845.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,415.28 : 258,790.68 = 133,864.56 : x
  2. Step 2: Convert to fraction form
    187,415.28/258,790.68 = 133,864.56/x
  3. Step 3: Cross multiply
    187,415.28x = 258,790.68 × 133,864.56
  4. Step 4: Simplify right side
    187,415.28x = 34,642,900,510.30
  5. Step 5: Solve for x
    x = 34,642,900,510.30/187,415.28
  6. Step 6: Final answer
    x = 184,845.66

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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.