Home / 112,887.71-168,999.38-75,354.68

Finding the Fourth Proportional to 112,887.71, 168,999.38 and 75,354.68

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Solution

The fourth proportional to 112,887.71, 168,999.38 and 75,354.68 is: 112,810.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,887.71 : 168,999.38 = 75,354.68 : x
  2. Step 2: Convert to fraction form
    112,887.71/168,999.38 = 75,354.68/x
  3. Step 3: Cross multiply
    112,887.71x = 168,999.38 × 75,354.68
  4. Step 4: Simplify right side
    112,887.71x = 12,734,894,200.10
  5. Step 5: Solve for x
    x = 12,734,894,200.10/112,887.71
  6. Step 6: Final answer
    x = 112,810.28

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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.