Home / 111,439.24-153,781.14-61,137.16

Finding the Fourth Proportional to 111,439.24, 153,781.14 and 61,137.16

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Solution

The fourth proportional to 111,439.24, 153,781.14 and 61,137.16 is: 84,366.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,439.24 : 153,781.14 = 61,137.16 : x
  2. Step 2: Convert to fraction form
    111,439.24/153,781.14 = 61,137.16/x
  3. Step 3: Cross multiply
    111,439.24x = 153,781.14 × 61,137.16
  4. Step 4: Simplify right side
    111,439.24x = 9,401,742,161.16
  5. Step 5: Solve for x
    x = 9,401,742,161.16/111,439.24
  6. Step 6: Final answer
    x = 84,366.53

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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.