Home / 187,047.12-258,125.81-105,376.35

Finding the Fourth Proportional to 187,047.12, 258,125.81 and 105,376.35

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Solution

The fourth proportional to 187,047.12, 258,125.81 and 105,376.35 is: 145,419.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,047.12 : 258,125.81 = 105,376.35 : x
  2. Step 2: Convert to fraction form
    187,047.12/258,125.81 = 105,376.35/x
  3. Step 3: Cross multiply
    187,047.12x = 258,125.81 × 105,376.35
  4. Step 4: Simplify right side
    187,047.12x = 27,200,355,698.59
  5. Step 5: Solve for x
    x = 27,200,355,698.59/187,047.12
  6. Step 6: Final answer
    x = 145,419.80

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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.