Home / 107,736.42-148,689.29-61,812.87

Finding the Fourth Proportional to 107,736.42, 148,689.29 and 61,812.87

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Solution

The fourth proportional to 107,736.42, 148,689.29 and 61,812.87 is: 85,309.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,736.42 : 148,689.29 = 61,812.87 : x
  2. Step 2: Convert to fraction form
    107,736.42/148,689.29 = 61,812.87/x
  3. Step 3: Cross multiply
    107,736.42x = 148,689.29 × 61,812.87
  4. Step 4: Simplify right side
    107,736.42x = 9,190,911,753.16
  5. Step 5: Solve for x
    x = 9,190,911,753.16/107,736.42
  6. Step 6: Final answer
    x = 85,309.24

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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.