Home / 101,536.05-140,120.85-56,214.72

Finding the Fourth Proportional to 101,536.05, 140,120.85 and 56,214.72

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Solution

The fourth proportional to 101,536.05, 140,120.85 and 56,214.72 is: 77,576.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,536.05 : 140,120.85 = 56,214.72 : x
  2. Step 2: Convert to fraction form
    101,536.05/140,120.85 = 56,214.72/x
  3. Step 3: Cross multiply
    101,536.05x = 140,120.85 × 56,214.72
  4. Step 4: Simplify right side
    101,536.05x = 7,876,854,348.91
  5. Step 5: Solve for x
    x = 7,876,854,348.91/101,536.05
  6. Step 6: Final answer
    x = 77,576.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.