Home / 112,774.26-155,628.47-61,788.92

Finding the Fourth Proportional to 112,774.26, 155,628.47 and 61,788.92

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Solution

The fourth proportional to 112,774.26, 155,628.47 and 61,788.92 is: 85,268.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,774.26 : 155,628.47 = 61,788.92 : x
  2. Step 2: Convert to fraction form
    112,774.26/155,628.47 = 61,788.92/x
  3. Step 3: Cross multiply
    112,774.26x = 155,628.47 × 61,788.92
  4. Step 4: Simplify right side
    112,774.26x = 9,616,115,451.59
  5. Step 5: Solve for x
    x = 9,616,115,451.59/112,774.26
  6. Step 6: Final answer
    x = 85,268.71

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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.