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Finding the Fourth Proportional to 144,913.34, 199,970.34 and 80,376.45

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Solution

The fourth proportional to 144,913.34, 199,970.34 and 80,376.45 is: 110,913.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,913.34 : 199,970.34 = 80,376.45 : x
  2. Step 2: Convert to fraction form
    144,913.34/199,970.34 = 80,376.45/x
  3. Step 3: Cross multiply
    144,913.34x = 199,970.34 × 80,376.45
  4. Step 4: Simplify right side
    144,913.34x = 16,072,906,034.49
  5. Step 5: Solve for x
    x = 16,072,906,034.49/144,913.34
  6. Step 6: Final answer
    x = 110,913.92

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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.