Home / 118,211.20-177,172.80-51,510.40

Finding the Fourth Proportional to 118,211.20, 177,172.80 and 51,510.40

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Solution

The fourth proportional to 118,211.20, 177,172.80 and 51,510.40 is: 77,202.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,211.20 : 177,172.80 = 51,510.40 : x
  2. Step 2: Convert to fraction form
    118,211.20/177,172.80 = 51,510.40/x
  3. Step 3: Cross multiply
    118,211.20x = 177,172.80 × 51,510.40
  4. Step 4: Simplify right side
    118,211.20x = 9,126,241,797.12
  5. Step 5: Solve for x
    x = 9,126,241,797.12/118,211.20
  6. Step 6: Final answer
    x = 77,202.85

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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.