Home / 144,345.12-199,197-80,681.55

Finding the Fourth Proportional to 144,345.12, 199,197 and 80,681.55

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Solution

The fourth proportional to 144,345.12, 199,197 and 80,681.55 is: 111,340.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,345.12 : 199,197 = 80,681.55 : x
  2. Step 2: Convert to fraction form
    144,345.12/199,197 = 80,681.55/x
  3. Step 3: Cross multiply
    144,345.12x = 199,197 × 80,681.55
  4. Step 4: Simplify right side
    144,345.12x = 16,071,522,715.35
  5. Step 5: Solve for x
    x = 16,071,522,715.35/144,345.12
  6. Step 6: Final answer
    x = 111,340.95

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Double scale
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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.