Home / 187,439.84-258,666.56-102,556.72

Finding the Fourth Proportional to 187,439.84, 258,666.56 and 102,556.72

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Solution

The fourth proportional to 187,439.84, 258,666.56 and 102,556.72 is: 141,528.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,439.84 : 258,666.56 = 102,556.72 : x
  2. Step 2: Convert to fraction form
    187,439.84/258,666.56 = 102,556.72/x
  3. Step 3: Cross multiply
    187,439.84x = 258,666.56 × 102,556.72
  4. Step 4: Simplify right side
    187,439.84x = 26,527,993,967.28
  5. Step 5: Solve for x
    x = 26,527,993,967.28/187,439.84
  6. Step 6: Final answer
    x = 141,528.04

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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.