Home / 112,544.64-168,875.64-81,635.04

Finding the Fourth Proportional to 112,544.64, 168,875.64 and 81,635.04

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Solution

The fourth proportional to 112,544.64, 168,875.64 and 81,635.04 is: 122,495.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,544.64 : 168,875.64 = 81,635.04 : x
  2. Step 2: Convert to fraction form
    112,544.64/168,875.64 = 81,635.04/x
  3. Step 3: Cross multiply
    112,544.64x = 168,875.64 × 81,635.04
  4. Step 4: Simplify right side
    112,544.64x = 13,786,169,626.43
  5. Step 5: Solve for x
    x = 13,786,169,626.43/112,544.64
  6. Step 6: Final answer
    x = 122,495.12

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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.