Home / 212,981.88-293,916.30-117,491.16

Finding the Fourth Proportional to 212,981.88, 293,916.30 and 117,491.16

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Solution

The fourth proportional to 212,981.88, 293,916.30 and 117,491.16 is: 162,138.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,981.88 : 293,916.30 = 117,491.16 : x
  2. Step 2: Convert to fraction form
    212,981.88/293,916.30 = 117,491.16/x
  3. Step 3: Cross multiply
    212,981.88x = 293,916.30 × 117,491.16
  4. Step 4: Simplify right side
    212,981.88x = 34,532,567,029.91
  5. Step 5: Solve for x
    x = 34,532,567,029.91/212,981.88
  6. Step 6: Final answer
    x = 162,138.52

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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.