Home / 187,146.96-258,189.57-115,402.43

Finding the Fourth Proportional to 187,146.96, 258,189.57 and 115,402.43

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Solution

The fourth proportional to 187,146.96, 258,189.57 and 115,402.43 is: 159,210.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,146.96 : 258,189.57 = 115,402.43 : x
  2. Step 2: Convert to fraction form
    187,146.96/258,189.57 = 115,402.43/x
  3. Step 3: Cross multiply
    187,146.96x = 258,189.57 × 115,402.43
  4. Step 4: Simplify right side
    187,146.96x = 29,795,702,487.71
  5. Step 5: Solve for x
    x = 29,795,702,487.71/187,146.96
  6. Step 6: Final answer
    x = 159,210.19

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1.5x scale

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.