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Finding the Fourth Proportional to 68,706.16, 103,077.16 and 19,458.16

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Solution

The fourth proportional to 68,706.16, 103,077.16 and 19,458.16 is: 29,192.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,706.16 : 103,077.16 = 19,458.16 : x
  2. Step 2: Convert to fraction form
    68,706.16/103,077.16 = 19,458.16/x
  3. Step 3: Cross multiply
    68,706.16x = 103,077.16 × 19,458.16
  4. Step 4: Simplify right side
    68,706.16x = 2,005,691,871.63
  5. Step 5: Solve for x
    x = 2,005,691,871.63/68,706.16
  6. Step 6: Final answer
    x = 29,192.32

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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.