Home / 111,527.64-153,838.08-66,173.49

Finding the Fourth Proportional to 111,527.64, 153,838.08 and 66,173.49

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Solution

The fourth proportional to 111,527.64, 153,838.08 and 66,173.49 is: 91,277.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,527.64 : 153,838.08 = 66,173.49 : x
  2. Step 2: Convert to fraction form
    111,527.64/153,838.08 = 66,173.49/x
  3. Step 3: Cross multiply
    111,527.64x = 153,838.08 × 66,173.49
  4. Step 4: Simplify right side
    111,527.64x = 10,180,002,648.50
  5. Step 5: Solve for x
    x = 10,180,002,648.50/111,527.64
  6. Step 6: Final answer
    x = 91,277.85

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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.