Home / 118,872.36-164,039.49-71,122.86

Finding the Fourth Proportional to 118,872.36, 164,039.49 and 71,122.86

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Solution

The fourth proportional to 118,872.36, 164,039.49 and 71,122.86 is: 98,146.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,872.36 : 164,039.49 = 71,122.86 : x
  2. Step 2: Convert to fraction form
    118,872.36/164,039.49 = 71,122.86/x
  3. Step 3: Cross multiply
    118,872.36x = 164,039.49 × 71,122.86
  4. Step 4: Simplify right side
    118,872.36x = 11,666,957,681.74
  5. Step 5: Solve for x
    x = 11,666,957,681.74/118,872.36
  6. Step 6: Final answer
    x = 98,146.93

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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.