Home / 127,165.86-175,513.10-84,146.21

Finding the Fourth Proportional to 127,165.86, 175,513.10 and 84,146.21

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Solution

The fourth proportional to 127,165.86, 175,513.10 and 84,146.21 is: 116,137.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,165.86 : 175,513.10 = 84,146.21 : x
  2. Step 2: Convert to fraction form
    127,165.86/175,513.10 = 84,146.21/x
  3. Step 3: Cross multiply
    127,165.86x = 175,513.10 × 84,146.21
  4. Step 4: Simplify right side
    127,165.86x = 14,768,760,872.05
  5. Step 5: Solve for x
    x = 14,768,760,872.05/127,165.86
  6. Step 6: Final answer
    x = 116,137.78

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1.5x scale

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.