Home / 144,080.34-198,812.53-80,420.82

Finding the Fourth Proportional to 144,080.34, 198,812.53 and 80,420.82

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Solution

The fourth proportional to 144,080.34, 198,812.53 and 80,420.82 is: 110,970.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,080.34 : 198,812.53 = 80,420.82 : x
  2. Step 2: Convert to fraction form
    144,080.34/198,812.53 = 80,420.82/x
  3. Step 3: Cross multiply
    144,080.34x = 198,812.53 × 80,420.82
  4. Step 4: Simplify right side
    144,080.34x = 15,988,665,591.49
  5. Step 5: Solve for x
    x = 15,988,665,591.49/144,080.34
  6. Step 6: Final answer
    x = 110,970.49

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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.