Home / 187,403.89-258,623.49-102,520.96

Finding the Fourth Proportional to 187,403.89, 258,623.49 and 102,520.96

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Solution

The fourth proportional to 187,403.89, 258,623.49 and 102,520.96 is: 141,482.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,403.89 : 258,623.49 = 102,520.96 : x
  2. Step 2: Convert to fraction form
    187,403.89/258,623.49 = 102,520.96/x
  3. Step 3: Cross multiply
    187,403.89x = 258,623.49 × 102,520.96
  4. Step 4: Simplify right side
    187,403.89x = 26,514,326,667.63
  5. Step 5: Solve for x
    x = 26,514,326,667.63/187,403.89
  6. Step 6: Final answer
    x = 141,482.26

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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.