Home / 142,406.28-213,609.96-133,745.76

Finding the Fourth Proportional to 142,406.28, 213,609.96 and 133,745.76

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Solution

The fourth proportional to 142,406.28, 213,609.96 and 133,745.76 is: 200,619.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,406.28 : 213,609.96 = 133,745.76 : x
  2. Step 2: Convert to fraction form
    142,406.28/213,609.96 = 133,745.76/x
  3. Step 3: Cross multiply
    142,406.28x = 213,609.96 × 133,745.76
  4. Step 4: Simplify right side
    142,406.28x = 28,569,426,443.77
  5. Step 5: Solve for x
    x = 28,569,426,443.77/142,406.28
  6. Step 6: Final answer
    x = 200,619.15

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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.