Home / 128,661.33-177,156.39-114,296.16

Finding the Fourth Proportional to 128,661.33, 177,156.39 and 114,296.16

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Solution

The fourth proportional to 128,661.33, 177,156.39 and 114,296.16 is: 157,376.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,661.33 : 177,156.39 = 114,296.16 : x
  2. Step 2: Convert to fraction form
    128,661.33/177,156.39 = 114,296.16/x
  3. Step 3: Cross multiply
    128,661.33x = 177,156.39 × 114,296.16
  4. Step 4: Simplify right side
    128,661.33x = 20,248,295,096.46
  5. Step 5: Solve for x
    x = 20,248,295,096.46/128,661.33
  6. Step 6: Final answer
    x = 157,376.70

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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.