Home / 103,512.02-155,268.03-82,637.78

Finding the Fourth Proportional to 103,512.02, 155,268.03 and 82,637.78

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Solution

The fourth proportional to 103,512.02, 155,268.03 and 82,637.78 is: 123,956.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,512.02 : 155,268.03 = 82,637.78 : x
  2. Step 2: Convert to fraction form
    103,512.02/155,268.03 = 82,637.78/x
  3. Step 3: Cross multiply
    103,512.02x = 155,268.03 × 82,637.78
  4. Step 4: Simplify right side
    103,512.02x = 12,831,005,304.17
  5. Step 5: Solve for x
    x = 12,831,005,304.17/103,512.02
  6. Step 6: Final answer
    x = 123,956.67

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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.