Home / 156,790.69-216,460.92-103,231.39

Finding the Fourth Proportional to 156,790.69, 216,460.92 and 103,231.39

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Solution

The fourth proportional to 156,790.69, 216,460.92 and 103,231.39 is: 142,518.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,790.69 : 216,460.92 = 103,231.39 : x
  2. Step 2: Convert to fraction form
    156,790.69/216,460.92 = 103,231.39/x
  3. Step 3: Cross multiply
    156,790.69x = 216,460.92 × 103,231.39
  4. Step 4: Simplify right side
    156,790.69x = 22,345,561,652.28
  5. Step 5: Solve for x
    x = 22,345,561,652.28/156,790.69
  6. Step 6: Final answer
    x = 142,518.42

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1.5x scale

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.