Home / 142,466.20-196,541.58-85,845.40

Finding the Fourth Proportional to 142,466.20, 196,541.58 and 85,845.40

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Solution

The fourth proportional to 142,466.20, 196,541.58 and 85,845.40 is: 118,429.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,466.20 : 196,541.58 = 85,845.40 : x
  2. Step 2: Convert to fraction form
    142,466.20/196,541.58 = 85,845.40/x
  3. Step 3: Cross multiply
    142,466.20x = 196,541.58 × 85,845.40
  4. Step 4: Simplify right side
    142,466.20x = 16,872,190,551.73
  5. Step 5: Solve for x
    x = 16,872,190,551.73/142,466.20
  6. Step 6: Final answer
    x = 118,429.43

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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.