Home / 142,626.80-196,827.72-85,325.12

Finding the Fourth Proportional to 142,626.80, 196,827.72 and 85,325.12

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Solution

The fourth proportional to 142,626.80, 196,827.72 and 85,325.12 is: 117,750.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,626.80 : 196,827.72 = 85,325.12 : x
  2. Step 2: Convert to fraction form
    142,626.80/196,827.72 = 85,325.12/x
  3. Step 3: Cross multiply
    142,626.80x = 196,827.72 × 85,325.12
  4. Step 4: Simplify right side
    142,626.80x = 16,794,348,828.33
  5. Step 5: Solve for x
    x = 16,794,348,828.33/142,626.80
  6. Step 6: Final answer
    x = 117,750.30

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1.5x scale

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.