Home / 211,129.79-291,363.82-120,483.95

Finding the Fourth Proportional to 211,129.79, 291,363.82 and 120,483.95

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Solution

The fourth proportional to 211,129.79, 291,363.82 and 120,483.95 is: 166,270.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,129.79 : 291,363.82 = 120,483.95 : x
  2. Step 2: Convert to fraction form
    211,129.79/291,363.82 = 120,483.95/x
  3. Step 3: Cross multiply
    211,129.79x = 291,363.82 × 120,483.95
  4. Step 4: Simplify right side
    211,129.79x = 35,104,662,162.66
  5. Step 5: Solve for x
    x = 35,104,662,162.66/211,129.79
  6. Step 6: Final answer
    x = 166,270.53

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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.