Home / 212,890.17-293,784.35-117,405.69

Finding the Fourth Proportional to 212,890.17, 293,784.35 and 117,405.69

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Solution

The fourth proportional to 212,890.17, 293,784.35 and 117,405.69 is: 162,017.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,890.17 : 293,784.35 = 117,405.69 : x
  2. Step 2: Convert to fraction form
    212,890.17/293,784.35 = 117,405.69/x
  3. Step 3: Cross multiply
    212,890.17x = 293,784.35 × 117,405.69
  4. Step 4: Simplify right side
    212,890.17x = 34,491,953,735.92
  5. Step 5: Solve for x
    x = 34,491,953,735.92/212,890.17
  6. Step 6: Final answer
    x = 162,017.60

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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.