Home / 144,739.19-199,751.16-91,070.21

Finding the Fourth Proportional to 144,739.19, 199,751.16 and 91,070.21

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Solution

The fourth proportional to 144,739.19, 199,751.16 and 91,070.21 is: 125,683.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,739.19 : 199,751.16 = 91,070.21 : x
  2. Step 2: Convert to fraction form
    144,739.19/199,751.16 = 91,070.21/x
  3. Step 3: Cross multiply
    144,739.19x = 199,751.16 × 91,070.21
  4. Step 4: Simplify right side
    144,739.19x = 18,191,378,634.84
  5. Step 5: Solve for x
    x = 18,191,378,634.84/144,739.19
  6. Step 6: Final answer
    x = 125,683.85

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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.