Home / 187,572.03-258,855.93-102,689.70

Finding the Fourth Proportional to 187,572.03, 258,855.93 and 102,689.70

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Solution

The fourth proportional to 187,572.03, 258,855.93 and 102,689.70 is: 141,715.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,572.03 : 258,855.93 = 102,689.70 : x
  2. Step 2: Convert to fraction form
    187,572.03/258,855.93 = 102,689.70/x
  3. Step 3: Cross multiply
    187,572.03x = 258,855.93 × 102,689.70
  4. Step 4: Simplify right side
    187,572.03x = 26,581,837,794.92
  5. Step 5: Solve for x
    x = 26,581,837,794.92/187,572.03
  6. Step 6: Final answer
    x = 141,715.36

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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.