Home / 111,577.24-153,965.91-66,247.48

Finding the Fourth Proportional to 111,577.24, 153,965.91 and 66,247.48

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Solution

The fourth proportional to 111,577.24, 153,965.91 and 66,247.48 is: 91,415.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,577.24 : 153,965.91 = 66,247.48 : x
  2. Step 2: Convert to fraction form
    111,577.24/153,965.91 = 66,247.48/x
  3. Step 3: Cross multiply
    111,577.24x = 153,965.91 × 66,247.48
  4. Step 4: Simplify right side
    111,577.24x = 10,199,853,543.41
  5. Step 5: Solve for x
    x = 10,199,853,543.41/111,577.24
  6. Step 6: Final answer
    x = 91,415.18

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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.