Home / 113,890.86-170,836.90-74,696.18

Finding the Fourth Proportional to 113,890.86, 170,836.90 and 74,696.18

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Solution

The fourth proportional to 113,890.86, 170,836.90 and 74,696.18 is: 112,044.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,890.86 : 170,836.90 = 74,696.18 : x
  2. Step 2: Convert to fraction form
    113,890.86/170,836.90 = 74,696.18/x
  3. Step 3: Cross multiply
    113,890.86x = 170,836.90 × 74,696.18
  4. Step 4: Simplify right side
    113,890.86x = 12,760,862,792.12
  5. Step 5: Solve for x
    x = 12,760,862,792.12/113,890.86
  6. Step 6: Final answer
    x = 112,044.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.