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Finding the Fourth Proportional to 144,483.96, 199,418.98 and 87,913.56

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Solution

The fourth proportional to 144,483.96, 199,418.98 and 87,913.56 is: 121,339.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,483.96 : 199,418.98 = 87,913.56 : x
  2. Step 2: Convert to fraction form
    144,483.96/199,418.98 = 87,913.56/x
  3. Step 3: Cross multiply
    144,483.96x = 199,418.98 × 87,913.56
  4. Step 4: Simplify right side
    144,483.96x = 17,531,632,463.37
  5. Step 5: Solve for x
    x = 17,531,632,463.37/144,483.96
  6. Step 6: Final answer
    x = 121,339.65

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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.