Home / 123,069,129.76-169,887,692.85-76,682,302.06

Finding the Fourth Proportional to 123,069,129.76, 169,887,692.85 and 76,682,302.06

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Solution

The fourth proportional to 123,069,129.76, 169,887,692.85 and 76,682,302.06 is: 105,854,160.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,069,129.76 : 169,887,692.85 = 76,682,302.06 : x
  2. Step 2: Convert to fraction form
    123,069,129.76/169,887,692.85 = 76,682,302.06/x
  3. Step 3: Cross multiply
    123,069,129.76x = 169,887,692.85 × 76,682,302.06
  4. Step 4: Simplify right side
    123,069,129.76x = 13,027,379,379,400,202
  5. Step 5: Solve for x
    x = 13,027,379,379,400,202/123,069,129.76
  6. Step 6: Final answer
    x = 105,854,160.22

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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.