Home / 142,121.52-212,949-48,576.24

Finding the Fourth Proportional to 142,121.52, 212,949 and 48,576.24

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Solution

The fourth proportional to 142,121.52, 212,949 and 48,576.24 is: 72,784.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,121.52 : 212,949 = 48,576.24 : x
  2. Step 2: Convert to fraction form
    142,121.52/212,949 = 48,576.24/x
  3. Step 3: Cross multiply
    142,121.52x = 212,949 × 48,576.24
  4. Step 4: Simplify right side
    142,121.52x = 10,344,261,731.76
  5. Step 5: Solve for x
    x = 10,344,261,731.76/142,121.52
  6. Step 6: Final answer
    x = 72,784.63

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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.