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Finding the Fourth Proportional to 163,468.18, 245,297.04 and 68,690.89

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Solution

The fourth proportional to 163,468.18, 245,297.04 and 68,690.89 is: 103,076.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,468.18 : 245,297.04 = 68,690.89 : x
  2. Step 2: Convert to fraction form
    163,468.18/245,297.04 = 68,690.89/x
  3. Step 3: Cross multiply
    163,468.18x = 245,297.04 × 68,690.89
  4. Step 4: Simplify right side
    163,468.18x = 16,849,671,991.97
  5. Step 5: Solve for x
    x = 16,849,671,991.97/163,468.18
  6. Step 6: Final answer
    x = 103,076.16

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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.