Home / 127,025.43-175,214.57-81,625.29

Finding the Fourth Proportional to 127,025.43, 175,214.57 and 81,625.29

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Solution

The fourth proportional to 127,025.43, 175,214.57 and 81,625.29 is: 112,591.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,025.43 : 175,214.57 = 81,625.29 : x
  2. Step 2: Convert to fraction form
    127,025.43/175,214.57 = 81,625.29/x
  3. Step 3: Cross multiply
    127,025.43x = 175,214.57 × 81,625.29
  4. Step 4: Simplify right side
    127,025.43x = 14,301,939,416.47
  5. Step 5: Solve for x
    x = 14,301,939,416.47/127,025.43
  6. Step 6: Final answer
    x = 112,591.16

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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.