Home / 113,785.68-170,551.34-42,639.86

Finding the Fourth Proportional to 113,785.68, 170,551.34 and 42,639.86

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Solution

The fourth proportional to 113,785.68, 170,551.34 and 42,639.86 is: 63,912.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,785.68 : 170,551.34 = 42,639.86 : x
  2. Step 2: Convert to fraction form
    113,785.68/170,551.34 = 42,639.86/x
  3. Step 3: Cross multiply
    113,785.68x = 170,551.34 × 42,639.86
  4. Step 4: Simplify right side
    113,785.68x = 7,272,285,260.41
  5. Step 5: Solve for x
    x = 7,272,285,260.41/113,785.68
  6. Step 6: Final answer
    x = 63,912.13

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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.