Home / 118,795.32-178,167.90-70,785.21

Finding the Fourth Proportional to 118,795.32, 178,167.90 and 70,785.21

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Solution

The fourth proportional to 118,795.32, 178,167.90 and 70,785.21 is: 106,162.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,795.32 : 178,167.90 = 70,785.21 : x
  2. Step 2: Convert to fraction form
    118,795.32/178,167.90 = 70,785.21/x
  3. Step 3: Cross multiply
    118,795.32x = 178,167.90 × 70,785.21
  4. Step 4: Simplify right side
    118,795.32x = 12,611,652,216.76
  5. Step 5: Solve for x
    x = 12,611,652,216.76/118,795.32
  6. Step 6: Final answer
    x = 106,162.87

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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.