Home / 111,228.04-166,988.22-66,331.72

Finding the Fourth Proportional to 111,228.04, 166,988.22 and 66,331.72

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Solution

The fourth proportional to 111,228.04, 166,988.22 and 66,331.72 is: 99,584.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,228.04 : 166,988.22 = 66,331.72 : x
  2. Step 2: Convert to fraction form
    111,228.04/166,988.22 = 66,331.72/x
  3. Step 3: Cross multiply
    111,228.04x = 166,988.22 × 66,331.72
  4. Step 4: Simplify right side
    111,228.04x = 11,076,615,852.34
  5. Step 5: Solve for x
    x = 11,076,615,852.34/111,228.04
  6. Step 6: Final answer
    x = 99,584.74

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1.5x scale

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.