Home / 212,721.63-293,557.86-117,231.81

Finding the Fourth Proportional to 212,721.63, 293,557.86 and 117,231.81

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Solution

The fourth proportional to 212,721.63, 293,557.86 and 117,231.81 is: 161,781.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,721.63 : 293,557.86 = 117,231.81 : x
  2. Step 2: Convert to fraction form
    212,721.63/293,557.86 = 117,231.81/x
  3. Step 3: Cross multiply
    212,721.63x = 293,557.86 × 117,231.81
  4. Step 4: Simplify right side
    212,721.63x = 34,414,319,267.53
  5. Step 5: Solve for x
    x = 34,414,319,267.53/212,721.63
  6. Step 6: Final answer
    x = 161,781.01

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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.