Home / 111,351.38-153,671.19-66,056.18

Finding the Fourth Proportional to 111,351.38, 153,671.19 and 66,056.18

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Solution

The fourth proportional to 111,351.38, 153,671.19 and 66,056.18 is: 91,161.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,351.38 : 153,671.19 = 66,056.18 : x
  2. Step 2: Convert to fraction form
    111,351.38/153,671.19 = 66,056.18/x
  3. Step 3: Cross multiply
    111,351.38x = 153,671.19 × 66,056.18
  4. Step 4: Simplify right side
    111,351.38x = 10,150,931,787.45
  5. Step 5: Solve for x
    x = 10,150,931,787.45/111,351.38
  6. Step 6: Final answer
    x = 91,161.26

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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.