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Finding the Fourth Proportional to 144,042.52, 216,141.54 and 70,170.52

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Solution

The fourth proportional to 144,042.52, 216,141.54 and 70,170.52 is: 105,293.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,042.52 : 216,141.54 = 70,170.52 : x
  2. Step 2: Convert to fraction form
    144,042.52/216,141.54 = 70,170.52/x
  3. Step 3: Cross multiply
    144,042.52x = 216,141.54 × 70,170.52
  4. Step 4: Simplify right side
    144,042.52x = 15,166,764,255.40
  5. Step 5: Solve for x
    x = 15,166,764,255.40/144,042.52
  6. Step 6: Final answer
    x = 105,293.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.