Home / 141,965.65-195,513.96-138,865.57

Finding the Fourth Proportional to 141,965.65, 195,513.96 and 138,865.57

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Solution

The fourth proportional to 141,965.65, 195,513.96 and 138,865.57 is: 191,244.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,965.65 : 195,513.96 = 138,865.57 : x
  2. Step 2: Convert to fraction form
    141,965.65/195,513.96 = 138,865.57/x
  3. Step 3: Cross multiply
    141,965.65x = 195,513.96 × 138,865.57
  4. Step 4: Simplify right side
    141,965.65x = 27,150,157,498.36
  5. Step 5: Solve for x
    x = 27,150,157,498.36/141,965.65
  6. Step 6: Final answer
    x = 191,244.55

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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.