Home / 212,980.18-293,912.67-117,487.12

Finding the Fourth Proportional to 212,980.18, 293,912.67 and 117,487.12

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Solution

The fourth proportional to 212,980.18, 293,912.67 and 117,487.12 is: 162,132.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,980.18 : 293,912.67 = 117,487.12 : x
  2. Step 2: Convert to fraction form
    212,980.18/293,912.67 = 117,487.12/x
  3. Step 3: Cross multiply
    212,980.18x = 293,912.67 × 117,487.12
  4. Step 4: Simplify right side
    212,980.18x = 34,530,953,129.81
  5. Step 5: Solve for x
    x = 34,530,953,129.81/212,980.18
  6. Step 6: Final answer
    x = 162,132.24

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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.