Home / 112,928.92-155,854.74-65,195.08

Finding the Fourth Proportional to 112,928.92, 155,854.74 and 65,195.08

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Solution

The fourth proportional to 112,928.92, 155,854.74 and 65,195.08 is: 89,976.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,928.92 : 155,854.74 = 65,195.08 : x
  2. Step 2: Convert to fraction form
    112,928.92/155,854.74 = 65,195.08/x
  3. Step 3: Cross multiply
    112,928.92x = 155,854.74 × 65,195.08
  4. Step 4: Simplify right side
    112,928.92x = 10,160,962,242.68
  5. Step 5: Solve for x
    x = 10,160,962,242.68/112,928.92
  6. Step 6: Final answer
    x = 89,976.62

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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.