Home / 142,325.28-213,522.93-100,287.43

Finding the Fourth Proportional to 142,325.28, 213,522.93 and 100,287.43

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Solution

The fourth proportional to 142,325.28, 213,522.93 and 100,287.43 is: 150,455.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,325.28 : 213,522.93 = 100,287.43 : x
  2. Step 2: Convert to fraction form
    142,325.28/213,522.93 = 100,287.43/x
  3. Step 3: Cross multiply
    142,325.28x = 213,522.93 × 100,287.43
  4. Step 4: Simplify right side
    142,325.28x = 21,413,665,361.96
  5. Step 5: Solve for x
    x = 21,413,665,361.96/142,325.28
  6. Step 6: Final answer
    x = 150,455.81

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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.