Home / 111,581.26-153,983.34-61,280.26

Finding the Fourth Proportional to 111,581.26, 153,983.34 and 61,280.26

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Solution

The fourth proportional to 111,581.26, 153,983.34 and 61,280.26 is: 84,567.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,581.26 : 153,983.34 = 61,280.26 : x
  2. Step 2: Convert to fraction form
    111,581.26/153,983.34 = 61,280.26/x
  3. Step 3: Cross multiply
    111,581.26x = 153,983.34 × 61,280.26
  4. Step 4: Simplify right side
    111,581.26x = 9,436,139,110.87
  5. Step 5: Solve for x
    x = 9,436,139,110.87/111,581.26
  6. Step 6: Final answer
    x = 84,567.42

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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.