Home / 156,441.39-215,887.81-88,471.71

Finding the Fourth Proportional to 156,441.39, 215,887.81 and 88,471.71

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Solution

The fourth proportional to 156,441.39, 215,887.81 and 88,471.71 is: 122,090.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,441.39 : 215,887.81 = 88,471.71 : x
  2. Step 2: Convert to fraction form
    156,441.39/215,887.81 = 88,471.71/x
  3. Step 3: Cross multiply
    156,441.39x = 215,887.81 × 88,471.71
  4. Step 4: Simplify right side
    156,441.39x = 19,099,962,639.42
  5. Step 5: Solve for x
    x = 19,099,962,639.42/156,441.39
  6. Step 6: Final answer
    x = 122,090.21

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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.