Home / 187,577.70-258,847.02-102,678.36

Finding the Fourth Proportional to 187,577.70, 258,847.02 and 102,678.36

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Solution

The fourth proportional to 187,577.70, 258,847.02 and 102,678.36 is: 141,690.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,577.70 : 258,847.02 = 102,678.36 : x
  2. Step 2: Convert to fraction form
    187,577.70/258,847.02 = 102,678.36/x
  3. Step 3: Cross multiply
    187,577.70x = 258,847.02 × 102,678.36
  4. Step 4: Simplify right side
    187,577.70x = 26,577,987,504.49
  5. Step 5: Solve for x
    x = 26,577,987,504.49/187,577.70
  6. Step 6: Final answer
    x = 141,690.55

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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.