Home / 153,632.19-211,995.30-85,644.03

Finding the Fourth Proportional to 153,632.19, 211,995.30 and 85,644.03

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Solution

The fourth proportional to 153,632.19, 211,995.30 and 85,644.03 is: 118,179.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,632.19 : 211,995.30 = 85,644.03 : x
  2. Step 2: Convert to fraction form
    153,632.19/211,995.30 = 85,644.03/x
  3. Step 3: Cross multiply
    153,632.19x = 211,995.30 × 85,644.03
  4. Step 4: Simplify right side
    153,632.19x = 18,156,131,833.06
  5. Step 5: Solve for x
    x = 18,156,131,833.06/153,632.19
  6. Step 6: Final answer
    x = 118,179.22

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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.