Home / 141,309.36-195,007.56-77,648.40

Finding the Fourth Proportional to 141,309.36, 195,007.56 and 77,648.40

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Solution

The fourth proportional to 141,309.36, 195,007.56 and 77,648.40 is: 107,155.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,309.36 : 195,007.56 = 77,648.40 : x
  2. Step 2: Convert to fraction form
    141,309.36/195,007.56 = 77,648.40/x
  3. Step 3: Cross multiply
    141,309.36x = 195,007.56 × 77,648.40
  4. Step 4: Simplify right side
    141,309.36x = 15,142,025,021.90
  5. Step 5: Solve for x
    x = 15,142,025,021.90/141,309.36
  6. Step 6: Final answer
    x = 107,155.15

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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.