Home / 153,583.10-211,961.86-85,606.28

Finding the Fourth Proportional to 153,583.10, 211,961.86 and 85,606.28

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Solution

The fourth proportional to 153,583.10, 211,961.86 and 85,606.28 is: 118,146.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,583.10 : 211,961.86 = 85,606.28 : x
  2. Step 2: Convert to fraction form
    153,583.10/211,961.86 = 85,606.28/x
  3. Step 3: Cross multiply
    153,583.10x = 211,961.86 × 85,606.28
  4. Step 4: Simplify right side
    153,583.10x = 18,145,266,336.48
  5. Step 5: Solve for x
    x = 18,145,266,336.48/153,583.10
  6. Step 6: Final answer
    x = 118,146.24

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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.