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Finding the Fourth Proportional to 144,970.86, 200,059.35 and 81,310.02

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Solution

The fourth proportional to 144,970.86, 200,059.35 and 81,310.02 is: 112,207.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,970.86 : 200,059.35 = 81,310.02 : x
  2. Step 2: Convert to fraction form
    144,970.86/200,059.35 = 81,310.02/x
  3. Step 3: Cross multiply
    144,970.86x = 200,059.35 × 81,310.02
  4. Step 4: Simplify right side
    144,970.86x = 16,266,829,749.69
  5. Step 5: Solve for x
    x = 16,266,829,749.69/144,970.86
  6. Step 6: Final answer
    x = 112,207.58

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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.