Home / 144,347.04-199,199.16-80,684.78

Finding the Fourth Proportional to 144,347.04, 199,199.16 and 80,684.78

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Solution

The fourth proportional to 144,347.04, 199,199.16 and 80,684.78 is: 111,345.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,347.04 : 199,199.16 = 80,684.78 : x
  2. Step 2: Convert to fraction form
    144,347.04/199,199.16 = 80,684.78/x
  3. Step 3: Cross multiply
    144,347.04x = 199,199.16 × 80,684.78
  4. Step 4: Simplify right side
    144,347.04x = 16,072,340,400.78
  5. Step 5: Solve for x
    x = 16,072,340,400.78/144,347.04
  6. Step 6: Final answer
    x = 111,345.13

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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.