Home / 224,161.50-309,361.38-128,686.62

Finding the Fourth Proportional to 224,161.50, 309,361.38 and 128,686.62

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Solution

The fourth proportional to 224,161.50, 309,361.38 and 128,686.62 is: 177,598.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,161.50 : 309,361.38 = 128,686.62 : x
  2. Step 2: Convert to fraction form
    224,161.50/309,361.38 = 128,686.62/x
  3. Step 3: Cross multiply
    224,161.50x = 309,361.38 × 128,686.62
  4. Step 4: Simplify right side
    224,161.50x = 39,810,668,160.50
  5. Step 5: Solve for x
    x = 39,810,668,160.50/224,161.50
  6. Step 6: Final answer
    x = 177,598.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.