Home / 101,385.22-139,910.14-56,062.21

Finding the Fourth Proportional to 101,385.22, 139,910.14 and 56,062.21

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Solution

The fourth proportional to 101,385.22, 139,910.14 and 56,062.21 is: 77,365.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,385.22 : 139,910.14 = 56,062.21 : x
  2. Step 2: Convert to fraction form
    101,385.22/139,910.14 = 56,062.21/x
  3. Step 3: Cross multiply
    101,385.22x = 139,910.14 × 56,062.21
  4. Step 4: Simplify right side
    101,385.22x = 7,843,671,649.81
  5. Step 5: Solve for x
    x = 7,843,671,649.81/101,385.22
  6. Step 6: Final answer
    x = 77,365.04

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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.