Home / 155,720.21-232,726.97-113,688.81

Finding the Fourth Proportional to 155,720.21, 232,726.97 and 113,688.81

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Solution

The fourth proportional to 155,720.21, 232,726.97 and 113,688.81 is: 169,910.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,720.21 : 232,726.97 = 113,688.81 : x
  2. Step 2: Convert to fraction form
    155,720.21/232,726.97 = 113,688.81/x
  3. Step 3: Cross multiply
    155,720.21x = 232,726.97 × 113,688.81
  4. Step 4: Simplify right side
    155,720.21x = 26,458,452,558.43
  5. Step 5: Solve for x
    x = 26,458,452,558.43/155,720.21
  6. Step 6: Final answer
    x = 169,910.21

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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.