Home / 188,139.08-259,672.02-112,731.32

Finding the Fourth Proportional to 188,139.08, 259,672.02 and 112,731.32

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Solution

The fourth proportional to 188,139.08, 259,672.02 and 112,731.32 is: 155,593.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,139.08 : 259,672.02 = 112,731.32 : x
  2. Step 2: Convert to fraction form
    188,139.08/259,672.02 = 112,731.32/x
  3. Step 3: Cross multiply
    188,139.08x = 259,672.02 × 112,731.32
  4. Step 4: Simplify right side
    188,139.08x = 29,273,169,581.67
  5. Step 5: Solve for x
    x = 29,273,169,581.67/188,139.08
  6. Step 6: Final answer
    x = 155,593.24

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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.