Home / 94,640.12-142,058.64-69,708.32

Finding the Fourth Proportional to 94,640.12, 142,058.64 and 69,708.32

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Solution

The fourth proportional to 94,640.12, 142,058.64 and 69,708.32 is: 104,635.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,640.12 : 142,058.64 = 69,708.32 : x
  2. Step 2: Convert to fraction form
    94,640.12/142,058.64 = 69,708.32/x
  3. Step 3: Cross multiply
    94,640.12x = 142,058.64 × 69,708.32
  4. Step 4: Simplify right side
    94,640.12x = 9,902,669,135.88
  5. Step 5: Solve for x
    x = 9,902,669,135.88/94,640.12
  6. Step 6: Final answer
    x = 104,635.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.