Home / 118,528.20-177,792.30-99,865.80

Finding the Fourth Proportional to 118,528.20, 177,792.30 and 99,865.80

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Solution

The fourth proportional to 118,528.20, 177,792.30 and 99,865.80 is: 149,798.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,528.20 : 177,792.30 = 99,865.80 : x
  2. Step 2: Convert to fraction form
    118,528.20/177,792.30 = 99,865.80/x
  3. Step 3: Cross multiply
    118,528.20x = 177,792.30 × 99,865.80
  4. Step 4: Simplify right side
    118,528.20x = 17,755,370,273.34
  5. Step 5: Solve for x
    x = 17,755,370,273.34/118,528.20
  6. Step 6: Final answer
    x = 149,798.70

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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.