Home / 111,218.80-166,439.40-101,887.60

Finding the Fourth Proportional to 111,218.80, 166,439.40 and 101,887.60

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Solution

The fourth proportional to 111,218.80, 166,439.40 and 101,887.60 is: 152,475.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,218.80 : 166,439.40 = 101,887.60 : x
  2. Step 2: Convert to fraction form
    111,218.80/166,439.40 = 101,887.60/x
  3. Step 3: Cross multiply
    111,218.80x = 166,439.40 × 101,887.60
  4. Step 4: Simplify right side
    111,218.80x = 16,958,111,011.44
  5. Step 5: Solve for x
    x = 16,958,111,011.44/111,218.80
  6. Step 6: Final answer
    x = 152,475.22

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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.