Home / 142,405.28-213,608.46-133,744.76

Finding the Fourth Proportional to 142,405.28, 213,608.46 and 133,744.76

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Solution

The fourth proportional to 142,405.28, 213,608.46 and 133,744.76 is: 200,617.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,405.28 : 213,608.46 = 133,744.76 : x
  2. Step 2: Convert to fraction form
    142,405.28/213,608.46 = 133,744.76/x
  3. Step 3: Cross multiply
    142,405.28x = 213,608.46 × 133,744.76
  4. Step 4: Simplify right side
    142,405.28x = 28,569,012,216.67
  5. Step 5: Solve for x
    x = 28,569,012,216.67/142,405.28
  6. Step 6: Final answer
    x = 200,617.65

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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.