Home / 155,720.31-232,727.12-113,688.90

Finding the Fourth Proportional to 155,720.31, 232,727.12 and 113,688.90

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Solution

The fourth proportional to 155,720.31, 232,727.12 and 113,688.90 is: 169,910.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,720.31 : 232,727.12 = 113,688.90 : x
  2. Step 2: Convert to fraction form
    155,720.31/232,727.12 = 113,688.90/x
  3. Step 3: Cross multiply
    155,720.31x = 232,727.12 × 113,688.90
  4. Step 4: Simplify right side
    155,720.31x = 26,458,489,704.52
  5. Step 5: Solve for x
    x = 26,458,489,704.52/155,720.31
  6. Step 6: Final answer
    x = 169,910.33

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.