Home / 122,887,108.54-169,586,709.69-67,136,139.94

Finding the Fourth Proportional to 122,887,108.54, 169,586,709.69 and 67,136,139.94

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Solution

The fourth proportional to 122,887,108.54, 169,586,709.69 and 67,136,139.94 is: 92,649,238.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,887,108.54 : 169,586,709.69 = 67,136,139.94 : x
  2. Step 2: Convert to fraction form
    122,887,108.54/169,586,709.69 = 67,136,139.94/x
  3. Step 3: Cross multiply
    122,887,108.54x = 169,586,709.69 × 67,136,139.94
  4. Step 4: Simplify right side
    122,887,108.54x = 11,385,397,072,864,060
  5. Step 5: Solve for x
    x = 11,385,397,072,864,060/122,887,108.54
  6. Step 6: Final answer
    x = 92,649,238.87

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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.