Home / 142,893.84-197,172.40-79,232.10

Finding the Fourth Proportional to 142,893.84, 197,172.40 and 79,232.10

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Solution

The fourth proportional to 142,893.84, 197,172.40 and 79,232.10 is: 109,328.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,893.84 : 197,172.40 = 79,232.10 : x
  2. Step 2: Convert to fraction form
    142,893.84/197,172.40 = 79,232.10/x
  3. Step 3: Cross multiply
    142,893.84x = 197,172.40 × 79,232.10
  4. Step 4: Simplify right side
    142,893.84x = 15,622,383,314.04
  5. Step 5: Solve for x
    x = 15,622,383,314.04/142,893.84
  6. Step 6: Final answer
    x = 109,328.60

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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.