Home / 142,304.28-213,432.12-47,521.32

Finding the Fourth Proportional to 142,304.28, 213,432.12 and 47,521.32

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Solution

The fourth proportional to 142,304.28, 213,432.12 and 47,521.32 is: 71,273.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,304.28 : 213,432.12 = 47,521.32 : x
  2. Step 2: Convert to fraction form
    142,304.28/213,432.12 = 47,521.32/x
  3. Step 3: Cross multiply
    142,304.28x = 213,432.12 × 47,521.32
  4. Step 4: Simplify right side
    142,304.28x = 10,142,576,072.80
  5. Step 5: Solve for x
    x = 10,142,576,072.80/142,304.28
  6. Step 6: Final answer
    x = 71,273.87

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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.