Home / 130,219.40-194,810.70-112,881.80

Finding the Fourth Proportional to 130,219.40, 194,810.70 and 112,881.80

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Solution

The fourth proportional to 130,219.40, 194,810.70 and 112,881.80 is: 168,873.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,219.40 : 194,810.70 = 112,881.80 : x
  2. Step 2: Convert to fraction form
    130,219.40/194,810.70 = 112,881.80/x
  3. Step 3: Cross multiply
    130,219.40x = 194,810.70 × 112,881.80
  4. Step 4: Simplify right side
    130,219.40x = 21,990,582,475.26
  5. Step 5: Solve for x
    x = 21,990,582,475.26/130,219.40
  6. Step 6: Final answer
    x = 168,873.32

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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.