Home / 111,916.62-154,440.27-61,612.38

Finding the Fourth Proportional to 111,916.62, 154,440.27 and 61,612.38

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Solution

The fourth proportional to 111,916.62, 154,440.27 and 61,612.38 is: 85,022.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,916.62 : 154,440.27 = 61,612.38 : x
  2. Step 2: Convert to fraction form
    111,916.62/154,440.27 = 61,612.38/x
  3. Step 3: Cross multiply
    111,916.62x = 154,440.27 × 61,612.38
  4. Step 4: Simplify right side
    111,916.62x = 9,515,432,602.54
  5. Step 5: Solve for x
    x = 9,515,432,602.54/111,916.62
  6. Step 6: Final answer
    x = 85,022.52

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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.