Home / 142,137.72-213,335.64-75,633.48

Finding the Fourth Proportional to 142,137.72, 213,335.64 and 75,633.48

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Solution

The fourth proportional to 142,137.72, 213,335.64 and 75,633.48 is: 113,518.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,137.72 : 213,335.64 = 75,633.48 : x
  2. Step 2: Convert to fraction form
    142,137.72/213,335.64 = 75,633.48/x
  3. Step 3: Cross multiply
    142,137.72x = 213,335.64 × 75,633.48
  4. Step 4: Simplify right side
    142,137.72x = 16,135,316,861.23
  5. Step 5: Solve for x
    x = 16,135,316,861.23/142,137.72
  6. Step 6: Final answer
    x = 113,518.89

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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.