Home / 189,867.14-284,551.60-139,712.39

Finding the Fourth Proportional to 189,867.14, 284,551.60 and 139,712.39

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Solution

The fourth proportional to 189,867.14, 284,551.60 and 139,712.39 is: 209,385.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,867.14 : 284,551.60 = 139,712.39 : x
  2. Step 2: Convert to fraction form
    189,867.14/284,551.60 = 139,712.39/x
  3. Step 3: Cross multiply
    189,867.14x = 284,551.60 × 139,712.39
  4. Step 4: Simplify right side
    189,867.14x = 39,755,384,682.51
  5. Step 5: Solve for x
    x = 39,755,384,682.51/189,867.14
  6. Step 6: Final answer
    x = 209,385.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.