Home / 187,172.82-258,298.59-102,289.87

Finding the Fourth Proportional to 187,172.82, 258,298.59 and 102,289.87

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Solution

The fourth proportional to 187,172.82, 258,298.59 and 102,289.87 is: 141,160.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,172.82 : 258,298.59 = 102,289.87 : x
  2. Step 2: Convert to fraction form
    187,172.82/258,298.59 = 102,289.87/x
  3. Step 3: Cross multiply
    187,172.82x = 258,298.59 × 102,289.87
  4. Step 4: Simplify right side
    187,172.82x = 26,421,329,192.28
  5. Step 5: Solve for x
    x = 26,421,329,192.28/187,172.82
  6. Step 6: Final answer
    x = 141,160.07

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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.