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Finding the Fourth Proportional to 164,560.32, 246,852 and 81,432

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Solution

The fourth proportional to 164,560.32, 246,852 and 81,432 is: 122,153.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,560.32 : 246,852 = 81,432 : x
  2. Step 2: Convert to fraction form
    164,560.32/246,852 = 81,432/x
  3. Step 3: Cross multiply
    164,560.32x = 246,852 × 81,432
  4. Step 4: Simplify right side
    164,560.32x = 20,101,652,064
  5. Step 5: Solve for x
    x = 20,101,652,064/164,560.32
  6. Step 6: Final answer
    x = 122,153.70

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.