Home / 113,105.34-156,085.51-62,121.38

Finding the Fourth Proportional to 113,105.34, 156,085.51 and 62,121.38

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Solution

The fourth proportional to 113,105.34, 156,085.51 and 62,121.38 is: 85,727.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,105.34 : 156,085.51 = 62,121.38 : x
  2. Step 2: Convert to fraction form
    113,105.34/156,085.51 = 62,121.38/x
  3. Step 3: Cross multiply
    113,105.34x = 156,085.51 × 62,121.38
  4. Step 4: Simplify right side
    113,105.34x = 9,696,246,343.47
  5. Step 5: Solve for x
    x = 9,696,246,343.47/113,105.34
  6. Step 6: Final answer
    x = 85,727.57

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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.