Home / 107,039.79-160,513.20-57,108.78

Finding the Fourth Proportional to 107,039.79, 160,513.20 and 57,108.78

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Solution

The fourth proportional to 107,039.79, 160,513.20 and 57,108.78 is: 85,638.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,039.79 : 160,513.20 = 57,108.78 : x
  2. Step 2: Convert to fraction form
    107,039.79/160,513.20 = 57,108.78/x
  3. Step 3: Cross multiply
    107,039.79x = 160,513.20 × 57,108.78
  4. Step 4: Simplify right side
    107,039.79x = 9,166,713,025.90
  5. Step 5: Solve for x
    x = 9,166,713,025.90/107,039.79
  6. Step 6: Final answer
    x = 85,638.37

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1.5x scale

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.