Home / 156,828.74-216,513.36-103,269.38

Finding the Fourth Proportional to 156,828.74, 216,513.36 and 103,269.38

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Solution

The fourth proportional to 156,828.74, 216,513.36 and 103,269.38 is: 142,570.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,828.74 : 216,513.36 = 103,269.38 : x
  2. Step 2: Convert to fraction form
    156,828.74/216,513.36 = 103,269.38/x
  3. Step 3: Cross multiply
    156,828.74x = 216,513.36 × 103,269.38
  4. Step 4: Simplify right side
    156,828.74x = 22,359,200,448.92
  5. Step 5: Solve for x
    x = 22,359,200,448.92/156,828.74
  6. Step 6: Final answer
    x = 142,570.81

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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.