Home / 130,277.40-195,416.10-76,914.60

Finding the Fourth Proportional to 130,277.40, 195,416.10 and 76,914.60

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Solution

The fourth proportional to 130,277.40, 195,416.10 and 76,914.60 is: 115,371.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,277.40 : 195,416.10 = 76,914.60 : x
  2. Step 2: Convert to fraction form
    130,277.40/195,416.10 = 76,914.60/x
  3. Step 3: Cross multiply
    130,277.40x = 195,416.10 × 76,914.60
  4. Step 4: Simplify right side
    130,277.40x = 15,030,351,165.06
  5. Step 5: Solve for x
    x = 15,030,351,165.06/130,277.40
  6. Step 6: Final answer
    x = 115,371.90

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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.