Home / 130,636.40-195,436.20-113,298.80

Finding the Fourth Proportional to 130,636.40, 195,436.20 and 113,298.80

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Solution

The fourth proportional to 130,636.40, 195,436.20 and 113,298.80 is: 169,498.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,636.40 : 195,436.20 = 113,298.80 : x
  2. Step 2: Convert to fraction form
    130,636.40/195,436.20 = 113,298.80/x
  3. Step 3: Cross multiply
    130,636.40x = 195,436.20 × 113,298.80
  4. Step 4: Simplify right side
    130,636.40x = 22,142,686,936.56
  5. Step 5: Solve for x
    x = 22,142,686,936.56/130,636.40
  6. Step 6: Final answer
    x = 169,498.60

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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.