Home / 190,511.48-262,785.34-122,411.40

Finding the Fourth Proportional to 190,511.48, 262,785.34 and 122,411.40

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Solution

The fourth proportional to 190,511.48, 262,785.34 and 122,411.40 is: 168,850.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,511.48 : 262,785.34 = 122,411.40 : x
  2. Step 2: Convert to fraction form
    190,511.48/262,785.34 = 122,411.40/x
  3. Step 3: Cross multiply
    190,511.48x = 262,785.34 × 122,411.40
  4. Step 4: Simplify right side
    190,511.48x = 32,167,921,062.85
  5. Step 5: Solve for x
    x = 32,167,921,062.85/190,511.48
  6. Step 6: Final answer
    x = 168,850.31

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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.