Home / 107,030.40-160,351.20-65,428.80

Finding the Fourth Proportional to 107,030.40, 160,351.20 and 65,428.80

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Solution

The fourth proportional to 107,030.40, 160,351.20 and 65,428.80 is: 98,024.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,030.40 : 160,351.20 = 65,428.80 : x
  2. Step 2: Convert to fraction form
    107,030.40/160,351.20 = 65,428.80/x
  3. Step 3: Cross multiply
    107,030.40x = 160,351.20 × 65,428.80
  4. Step 4: Simplify right side
    107,030.40x = 10,491,586,594.56
  5. Step 5: Solve for x
    x = 10,491,586,594.56/107,030.40
  6. Step 6: Final answer
    x = 98,024.36

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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.