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Finding the Fourth Proportional to 136,010.66, 187,717 and 113,313.66

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Solution

The fourth proportional to 136,010.66, 187,717 and 113,313.66 is: 156,391.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,010.66 : 187,717 = 113,313.66 : x
  2. Step 2: Convert to fraction form
    136,010.66/187,717 = 113,313.66/x
  3. Step 3: Cross multiply
    136,010.66x = 187,717 × 113,313.66
  4. Step 4: Simplify right side
    136,010.66x = 21,270,900,314.22
  5. Step 5: Solve for x
    x = 21,270,900,314.22/136,010.66
  6. Step 6: Final answer
    x = 156,391.42

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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.