Home / 156,007.14-215,289.66-84,386.94

Finding the Fourth Proportional to 156,007.14, 215,289.66 and 84,386.94

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Solution

The fourth proportional to 156,007.14, 215,289.66 and 84,386.94 is: 116,453.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,007.14 : 215,289.66 = 84,386.94 : x
  2. Step 2: Convert to fraction form
    156,007.14/215,289.66 = 84,386.94/x
  3. Step 3: Cross multiply
    156,007.14x = 215,289.66 × 84,386.94
  4. Step 4: Simplify right side
    156,007.14x = 18,167,635,621.04
  5. Step 5: Solve for x
    x = 18,167,635,621.04/156,007.14
  6. Step 6: Final answer
    x = 116,453.87

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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.