Home / 111,574.40-153,921.06-66,226.55

Finding the Fourth Proportional to 111,574.40, 153,921.06 and 66,226.55

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Solution

The fourth proportional to 111,574.40, 153,921.06 and 66,226.55 is: 91,362.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,574.40 : 153,921.06 = 66,226.55 : x
  2. Step 2: Convert to fraction form
    111,574.40/153,921.06 = 66,226.55/x
  3. Step 3: Cross multiply
    111,574.40x = 153,921.06 × 66,226.55
  4. Step 4: Simplify right side
    111,574.40x = 10,193,660,776.14
  5. Step 5: Solve for x
    x = 10,193,660,776.14/111,574.40
  6. Step 6: Final answer
    x = 91,362.00

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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.