Home / 111,757.48-154,221.30-61,456.12

Finding the Fourth Proportional to 111,757.48, 154,221.30 and 61,456.12

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Solution

The fourth proportional to 111,757.48, 154,221.30 and 61,456.12 is: 84,807.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,757.48 : 154,221.30 = 61,456.12 : x
  2. Step 2: Convert to fraction form
    111,757.48/154,221.30 = 61,456.12/x
  3. Step 3: Cross multiply
    111,757.48x = 154,221.30 × 61,456.12
  4. Step 4: Simplify right side
    111,757.48x = 9,477,842,719.36
  5. Step 5: Solve for x
    x = 9,477,842,719.36/111,757.48
  6. Step 6: Final answer
    x = 84,807.23

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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.