Home / 112,623.92-155,419.66-61,636.14

Finding the Fourth Proportional to 112,623.92, 155,419.66 and 61,636.14

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Solution

The fourth proportional to 112,623.92, 155,419.66 and 61,636.14 is: 85,057.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,623.92 : 155,419.66 = 61,636.14 : x
  2. Step 2: Convert to fraction form
    112,623.92/155,419.66 = 61,636.14/x
  3. Step 3: Cross multiply
    112,623.92x = 155,419.66 × 61,636.14
  4. Step 4: Simplify right side
    112,623.92x = 9,579,467,999.56
  5. Step 5: Solve for x
    x = 9,579,467,999.56/112,623.92
  6. Step 6: Final answer
    x = 85,057.14

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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.