Home / 112,403.05-155,114.38-61,414.69

Finding the Fourth Proportional to 112,403.05, 155,114.38 and 61,414.69

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Solution

The fourth proportional to 112,403.05, 155,114.38 and 61,414.69 is: 84,751.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,403.05 : 155,114.38 = 61,414.69 : x
  2. Step 2: Convert to fraction form
    112,403.05/155,114.38 = 61,414.69/x
  3. Step 3: Cross multiply
    112,403.05x = 155,114.38 × 61,414.69
  4. Step 4: Simplify right side
    112,403.05x = 9,526,301,562.24
  5. Step 5: Solve for x
    x = 9,526,301,562.24/112,403.05
  6. Step 6: Final answer
    x = 84,751.27

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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.