Home / 131,421.40-197,180.70-52,592.20

Finding the Fourth Proportional to 131,421.40, 197,180.70 and 52,592.20

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Solution

The fourth proportional to 131,421.40, 197,180.70 and 52,592.20 is: 78,907.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,421.40 : 197,180.70 = 52,592.20 : x
  2. Step 2: Convert to fraction form
    131,421.40/197,180.70 = 52,592.20/x
  3. Step 3: Cross multiply
    131,421.40x = 197,180.70 × 52,592.20
  4. Step 4: Simplify right side
    131,421.40x = 10,370,166,810.54
  5. Step 5: Solve for x
    x = 10,370,166,810.54/131,421.40
  6. Step 6: Final answer
    x = 78,907.75

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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.