Home / 144,720.36-199,738.08-99,361.20

Finding the Fourth Proportional to 144,720.36, 199,738.08 and 99,361.20

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Solution

The fourth proportional to 144,720.36, 199,738.08 and 99,361.20 is: 137,134.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,720.36 : 199,738.08 = 99,361.20 : x
  2. Step 2: Convert to fraction form
    144,720.36/199,738.08 = 99,361.20/x
  3. Step 3: Cross multiply
    144,720.36x = 199,738.08 × 99,361.20
  4. Step 4: Simplify right side
    144,720.36x = 19,846,215,314.50
  5. Step 5: Solve for x
    x = 19,846,215,314.50/144,720.36
  6. Step 6: Final answer
    x = 137,134.92

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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.