Home / 212,985.20-293,920.55-117,491.87

Finding the Fourth Proportional to 212,985.20, 293,920.55 and 117,491.87

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Solution

The fourth proportional to 212,985.20, 293,920.55 and 117,491.87 is: 162,139.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,985.20 : 293,920.55 = 117,491.87 : x
  2. Step 2: Convert to fraction form
    212,985.20/293,920.55 = 117,491.87/x
  3. Step 3: Cross multiply
    212,985.20x = 293,920.55 × 117,491.87
  4. Step 4: Simplify right side
    212,985.20x = 34,533,275,198.27
  5. Step 5: Solve for x
    x = 34,533,275,198.27/212,985.20
  6. Step 6: Final answer
    x = 162,139.32

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1.5x scale

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.