Home / 122,887,109.29-169,586,710.73-67,136,140.69

Finding the Fourth Proportional to 122,887,109.29, 169,586,710.73 and 67,136,140.69

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Solution

The fourth proportional to 122,887,109.29, 169,586,710.73 and 67,136,140.69 is: 92,649,239.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,887,109.29 : 169,586,710.73 = 67,136,140.69 : x
  2. Step 2: Convert to fraction form
    122,887,109.29/169,586,710.73 = 67,136,140.69/x
  3. Step 3: Cross multiply
    122,887,109.29x = 169,586,710.73 × 67,136,140.69
  4. Step 4: Simplify right side
    122,887,109.29x = 11,385,397,269,539,998
  5. Step 5: Solve for x
    x = 11,385,397,269,539,998/122,887,109.29
  6. Step 6: Final answer
    x = 92,649,239.90

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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.