Home / 130,985.40-196,508.82-52,104.12

Finding the Fourth Proportional to 130,985.40, 196,508.82 and 52,104.12

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Solution

The fourth proportional to 130,985.40, 196,508.82 and 52,104.12 is: 78,168.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,985.40 : 196,508.82 = 52,104.12 : x
  2. Step 2: Convert to fraction form
    130,985.40/196,508.82 = 52,104.12/x
  3. Step 3: Cross multiply
    130,985.40x = 196,508.82 × 52,104.12
  4. Step 4: Simplify right side
    130,985.40x = 10,238,919,138.34
  5. Step 5: Solve for x
    x = 10,238,919,138.34/130,985.40
  6. Step 6: Final answer
    x = 78,168.40

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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.