Home / 113,879.91-157,154.27-66,136.33

Finding the Fourth Proportional to 113,879.91, 157,154.27 and 66,136.33

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Solution

The fourth proportional to 113,879.91, 157,154.27 and 66,136.33 is: 91,268.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,879.91 : 157,154.27 = 66,136.33 : x
  2. Step 2: Convert to fraction form
    113,879.91/157,154.27 = 66,136.33/x
  3. Step 3: Cross multiply
    113,879.91x = 157,154.27 × 66,136.33
  4. Step 4: Simplify right side
    113,879.91x = 10,393,607,332.54
  5. Step 5: Solve for x
    x = 10,393,607,332.54/113,879.91
  6. Step 6: Final answer
    x = 91,268.14

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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.