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Finding the Fourth Proportional to 134,763.70, 202,117.20 and 68,141.20

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Solution

The fourth proportional to 134,763.70, 202,117.20 and 68,141.20 is: 102,197.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,763.70 : 202,117.20 = 68,141.20 : x
  2. Step 2: Convert to fraction form
    134,763.70/202,117.20 = 68,141.20/x
  3. Step 3: Cross multiply
    134,763.70x = 202,117.20 × 68,141.20
  4. Step 4: Simplify right side
    134,763.70x = 13,772,508,548.64
  5. Step 5: Solve for x
    x = 13,772,508,548.64/134,763.70
  6. Step 6: Final answer
    x = 102,197.47

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1.5x scale

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.