Home / 99,121.18-148,602.46-51,712.48

Finding the Fourth Proportional to 99,121.18, 148,602.46 and 51,712.48

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Solution

The fourth proportional to 99,121.18, 148,602.46 and 51,712.48 is: 77,527.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,121.18 : 148,602.46 = 51,712.48 : x
  2. Step 2: Convert to fraction form
    99,121.18/148,602.46 = 51,712.48/x
  3. Step 3: Cross multiply
    99,121.18x = 148,602.46 × 51,712.48
  4. Step 4: Simplify right side
    99,121.18x = 7,684,601,740.70
  5. Step 5: Solve for x
    x = 7,684,601,740.70/99,121.18
  6. Step 6: Final answer
    x = 77,527.34

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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.