Home / 211,262.50-291,542.26-121,838.50

Finding the Fourth Proportional to 211,262.50, 291,542.26 and 121,838.50

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Solution

The fourth proportional to 211,262.50, 291,542.26 and 121,838.50 is: 168,137.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,262.50 : 291,542.26 = 121,838.50 : x
  2. Step 2: Convert to fraction form
    211,262.50/291,542.26 = 121,838.50/x
  3. Step 3: Cross multiply
    211,262.50x = 291,542.26 × 121,838.50
  4. Step 4: Simplify right side
    211,262.50x = 35,521,071,645.01
  5. Step 5: Solve for x
    x = 35,521,071,645.01/211,262.50
  6. Step 6: Final answer
    x = 168,137.14

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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.