Home / 141,383.07-195,111.99-77,722.20

Finding the Fourth Proportional to 141,383.07, 195,111.99 and 77,722.20

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Solution

The fourth proportional to 141,383.07, 195,111.99 and 77,722.20 is: 107,258.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,383.07 : 195,111.99 = 77,722.20 : x
  2. Step 2: Convert to fraction form
    141,383.07/195,111.99 = 77,722.20/x
  3. Step 3: Cross multiply
    141,383.07x = 195,111.99 × 77,722.20
  4. Step 4: Simplify right side
    141,383.07x = 15,164,533,109.18
  5. Step 5: Solve for x
    x = 15,164,533,109.18/141,383.07
  6. Step 6: Final answer
    x = 107,258.48

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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.