Home / 102,620.36-153,946.20-43,456.34

Finding the Fourth Proportional to 102,620.36, 153,946.20 and 43,456.34

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Solution

The fourth proportional to 102,620.36, 153,946.20 and 43,456.34 is: 65,191.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,620.36 : 153,946.20 = 43,456.34 : x
  2. Step 2: Convert to fraction form
    102,620.36/153,946.20 = 43,456.34/x
  3. Step 3: Cross multiply
    102,620.36x = 153,946.20 × 43,456.34
  4. Step 4: Simplify right side
    102,620.36x = 6,689,938,408.91
  5. Step 5: Solve for x
    x = 6,689,938,408.91/102,620.36
  6. Step 6: Final answer
    x = 65,191.14

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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.