Home / 131,061.60-196,592.40-72,012.60

Finding the Fourth Proportional to 131,061.60, 196,592.40 and 72,012.60

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Solution

The fourth proportional to 131,061.60, 196,592.40 and 72,012.60 is: 108,018.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,061.60 : 196,592.40 = 72,012.60 : x
  2. Step 2: Convert to fraction form
    131,061.60/196,592.40 = 72,012.60/x
  3. Step 3: Cross multiply
    131,061.60x = 196,592.40 × 72,012.60
  4. Step 4: Simplify right side
    131,061.60x = 14,157,129,864.24
  5. Step 5: Solve for x
    x = 14,157,129,864.24/131,061.60
  6. Step 6: Final answer
    x = 108,018.90

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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.