Home / 187,369.79-258,574.40-102,486.85

Finding the Fourth Proportional to 187,369.79, 258,574.40 and 102,486.85

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Solution

The fourth proportional to 187,369.79, 258,574.40 and 102,486.85 is: 141,434.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,369.79 : 258,574.40 = 102,486.85 : x
  2. Step 2: Convert to fraction form
    187,369.79/258,574.40 = 102,486.85/x
  3. Step 3: Cross multiply
    187,369.79x = 258,574.40 × 102,486.85
  4. Step 4: Simplify right side
    187,369.79x = 26,500,475,356.42
  5. Step 5: Solve for x
    x = 26,500,475,356.42/187,369.79
  6. Step 6: Final answer
    x = 141,434.09

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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.