Home / 113,813.12-157,115.25-66,057.24

Finding the Fourth Proportional to 113,813.12, 157,115.25 and 66,057.24

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Solution

The fourth proportional to 113,813.12, 157,115.25 and 66,057.24 is: 91,189.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,813.12 : 157,115.25 = 66,057.24 : x
  2. Step 2: Convert to fraction form
    113,813.12/157,115.25 = 66,057.24/x
  3. Step 3: Cross multiply
    113,813.12x = 157,115.25 × 66,057.24
  4. Step 4: Simplify right side
    113,813.12x = 10,378,599,776.91
  5. Step 5: Solve for x
    x = 10,378,599,776.91/113,813.12
  6. Step 6: Final answer
    x = 91,189.84

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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.