Home / 130,467.74-178,696.43-122,807.76

Finding the Fourth Proportional to 130,467.74, 178,696.43 and 122,807.76

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Solution

The fourth proportional to 130,467.74, 178,696.43 and 122,807.76 is: 168,204.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,467.74 : 178,696.43 = 122,807.76 : x
  2. Step 2: Convert to fraction form
    130,467.74/178,696.43 = 122,807.76/x
  3. Step 3: Cross multiply
    130,467.74x = 178,696.43 × 122,807.76
  4. Step 4: Simplify right side
    130,467.74x = 21,945,307,674.26
  5. Step 5: Solve for x
    x = 21,945,307,674.26/130,467.74
  6. Step 6: Final answer
    x = 168,204.86

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.