Home / 142,519.40-213,728.70-49,003.40

Finding the Fourth Proportional to 142,519.40, 213,728.70 and 49,003.40

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Solution

The fourth proportional to 142,519.40, 213,728.70 and 49,003.40 is: 73,487.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,519.40 : 213,728.70 = 49,003.40 : x
  2. Step 2: Convert to fraction form
    142,519.40/213,728.70 = 49,003.40/x
  3. Step 3: Cross multiply
    142,519.40x = 213,728.70 × 49,003.40
  4. Step 4: Simplify right side
    142,519.40x = 10,473,432,977.58
  5. Step 5: Solve for x
    x = 10,473,432,977.58/142,519.40
  6. Step 6: Final answer
    x = 73,487.77

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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.