Home / 111,350.38-153,669.81-66,055.18

Finding the Fourth Proportional to 111,350.38, 153,669.81 and 66,055.18

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Solution

The fourth proportional to 111,350.38, 153,669.81 and 66,055.18 is: 91,159.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,350.38 : 153,669.81 = 66,055.18 : x
  2. Step 2: Convert to fraction form
    111,350.38/153,669.81 = 66,055.18/x
  3. Step 3: Cross multiply
    111,350.38x = 153,669.81 × 66,055.18
  4. Step 4: Simplify right side
    111,350.38x = 10,150,686,960.12
  5. Step 5: Solve for x
    x = 10,150,686,960.12/111,350.38
  6. Step 6: Final answer
    x = 91,159.88

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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.