Home / 101,821.11-140,508.27-56,498.55

Finding the Fourth Proportional to 101,821.11, 140,508.27 and 56,498.55

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Solution

The fourth proportional to 101,821.11, 140,508.27 and 56,498.55 is: 77,965.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,821.11 : 140,508.27 = 56,498.55 : x
  2. Step 2: Convert to fraction form
    101,821.11/140,508.27 = 56,498.55/x
  3. Step 3: Cross multiply
    101,821.11x = 140,508.27 × 56,498.55
  4. Step 4: Simplify right side
    101,821.11x = 7,938,513,518.01
  5. Step 5: Solve for x
    x = 7,938,513,518.01/101,821.11
  6. Step 6: Final answer
    x = 77,965.30

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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.