Home / 105,493.03-158,130.19-65,959.36

Finding the Fourth Proportional to 105,493.03, 158,130.19 and 65,959.36

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Solution

The fourth proportional to 105,493.03, 158,130.19 and 65,959.36 is: 98,870.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,493.03 : 158,130.19 = 65,959.36 : x
  2. Step 2: Convert to fraction form
    105,493.03/158,130.19 = 65,959.36/x
  3. Step 3: Cross multiply
    105,493.03x = 158,130.19 × 65,959.36
  4. Step 4: Simplify right side
    105,493.03x = 10,430,165,568.85
  5. Step 5: Solve for x
    x = 10,430,165,568.85/105,493.03
  6. Step 6: Final answer
    x = 98,870.66

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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.