Home / 111,588.12-153,991.60-61,287.12

Finding the Fourth Proportional to 111,588.12, 153,991.60 and 61,287.12

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Solution

The fourth proportional to 111,588.12, 153,991.60 and 61,287.12 is: 84,576.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,588.12 : 153,991.60 = 61,287.12 : x
  2. Step 2: Convert to fraction form
    111,588.12/153,991.60 = 61,287.12/x
  3. Step 3: Cross multiply
    111,588.12x = 153,991.60 × 61,287.12
  4. Step 4: Simplify right side
    111,588.12x = 9,437,701,668.19
  5. Step 5: Solve for x
    x = 9,437,701,668.19/111,588.12
  6. Step 6: Final answer
    x = 84,576.22

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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.