Home / 144,407.07-199,281.80-80,745.05

Finding the Fourth Proportional to 144,407.07, 199,281.80 and 80,745.05

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Solution

The fourth proportional to 144,407.07, 199,281.80 and 80,745.05 is: 111,428.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,407.07 : 199,281.80 = 80,745.05 : x
  2. Step 2: Convert to fraction form
    144,407.07/199,281.80 = 80,745.05/x
  3. Step 3: Cross multiply
    144,407.07x = 199,281.80 × 80,745.05
  4. Step 4: Simplify right side
    144,407.07x = 16,091,019,605.16
  5. Step 5: Solve for x
    x = 16,091,019,605.16/144,407.07
  6. Step 6: Final answer
    x = 111,428.20

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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.