Home / 144,303.45-199,138.18-80,641.23

Finding the Fourth Proportional to 144,303.45, 199,138.18 and 80,641.23

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Solution

The fourth proportional to 144,303.45, 199,138.18 and 80,641.23 is: 111,284.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,303.45 : 199,138.18 = 80,641.23 : x
  2. Step 2: Convert to fraction form
    144,303.45/199,138.18 = 80,641.23/x
  3. Step 3: Cross multiply
    144,303.45x = 199,138.18 × 80,641.23
  4. Step 4: Simplify right side
    144,303.45x = 16,058,747,775.16
  5. Step 5: Solve for x
    x = 16,058,747,775.16/144,303.45
  6. Step 6: Final answer
    x = 111,284.57

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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.