Home / 153,583.14-211,961.94-85,606.32

Finding the Fourth Proportional to 153,583.14, 211,961.94 and 85,606.32

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Solution

The fourth proportional to 153,583.14, 211,961.94 and 85,606.32 is: 118,146.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,583.14 : 211,961.94 = 85,606.32 : x
  2. Step 2: Convert to fraction form
    153,583.14/211,961.94 = 85,606.32/x
  3. Step 3: Cross multiply
    153,583.14x = 211,961.94 × 85,606.32
  4. Step 4: Simplify right side
    153,583.14x = 18,145,281,663.46
  5. Step 5: Solve for x
    x = 18,145,281,663.46/153,583.14
  6. Step 6: Final answer
    x = 118,146.31

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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.