Home / 111,440.24-153,782.52-61,138.16

Finding the Fourth Proportional to 111,440.24, 153,782.52 and 61,138.16

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Solution

The fourth proportional to 111,440.24, 153,782.52 and 61,138.16 is: 84,367.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,440.24 : 153,782.52 = 61,138.16 : x
  2. Step 2: Convert to fraction form
    111,440.24/153,782.52 = 61,138.16/x
  3. Step 3: Cross multiply
    111,440.24x = 153,782.52 × 61,138.16
  4. Step 4: Simplify right side
    111,440.24x = 9,401,980,312.96
  5. Step 5: Solve for x
    x = 9,401,980,312.96/111,440.24
  6. Step 6: Final answer
    x = 84,367.91

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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.