Home / 187,083.40-280,430.70-102,713.80

Finding the Fourth Proportional to 187,083.40, 280,430.70 and 102,713.80

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Solution

The fourth proportional to 187,083.40, 280,430.70 and 102,713.80 is: 153,963.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,083.40 : 280,430.70 = 102,713.80 : x
  2. Step 2: Convert to fraction form
    187,083.40/280,430.70 = 102,713.80/x
  3. Step 3: Cross multiply
    187,083.40x = 280,430.70 × 102,713.80
  4. Step 4: Simplify right side
    187,083.40x = 28,804,102,833.66
  5. Step 5: Solve for x
    x = 28,804,102,833.66/187,083.40
  6. Step 6: Final answer
    x = 153,963.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.