Home / 142,401.28-213,602.46-133,740.76

Finding the Fourth Proportional to 142,401.28, 213,602.46 and 133,740.76

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Solution

The fourth proportional to 142,401.28, 213,602.46 and 133,740.76 is: 200,611.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,401.28 : 213,602.46 = 133,740.76 : x
  2. Step 2: Convert to fraction form
    142,401.28/213,602.46 = 133,740.76/x
  3. Step 3: Cross multiply
    142,401.28x = 213,602.46 × 133,740.76
  4. Step 4: Simplify right side
    142,401.28x = 28,567,355,338.27
  5. Step 5: Solve for x
    x = 28,567,355,338.27/142,401.28
  6. Step 6: Final answer
    x = 200,611.65

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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.