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Finding the Fourth Proportional to 142,959.90, 214,370.58 and 43,101.48

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Solution

The fourth proportional to 142,959.90, 214,370.58 and 43,101.48 is: 64,631.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,959.90 : 214,370.58 = 43,101.48 : x
  2. Step 2: Convert to fraction form
    142,959.90/214,370.58 = 43,101.48/x
  3. Step 3: Cross multiply
    142,959.90x = 214,370.58 × 43,101.48
  4. Step 4: Simplify right side
    142,959.90x = 9,239,689,266.46
  5. Step 5: Solve for x
    x = 9,239,689,266.46/142,959.90
  6. Step 6: Final answer
    x = 64,631.34

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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.