Home / 118,741.65-178,057.11-68,836.02

Finding the Fourth Proportional to 118,741.65, 178,057.11 and 68,836.02

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Solution

The fourth proportional to 118,741.65, 178,057.11 and 68,836.02 is: 103,221.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,741.65 : 178,057.11 = 68,836.02 : x
  2. Step 2: Convert to fraction form
    118,741.65/178,057.11 = 68,836.02/x
  3. Step 3: Cross multiply
    118,741.65x = 178,057.11 × 68,836.02
  4. Step 4: Simplify right side
    118,741.65x = 12,256,742,785.10
  5. Step 5: Solve for x
    x = 12,256,742,785.10/118,741.65
  6. Step 6: Final answer
    x = 103,221.93

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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.