Home / 130,216.90-194,806.95-112,879.30

Finding the Fourth Proportional to 130,216.90, 194,806.95 and 112,879.30

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Solution

The fourth proportional to 130,216.90, 194,806.95 and 112,879.30 is: 168,869.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,216.90 : 194,806.95 = 112,879.30 : x
  2. Step 2: Convert to fraction form
    130,216.90/194,806.95 = 112,879.30/x
  3. Step 3: Cross multiply
    130,216.90x = 194,806.95 × 112,879.30
  4. Step 4: Simplify right side
    130,216.90x = 21,989,672,151.14
  5. Step 5: Solve for x
    x = 21,989,672,151.14/130,216.90
  6. Step 6: Final answer
    x = 168,869.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.