Home / 103,176.90-154,687.35-67,647.15

Finding the Fourth Proportional to 103,176.90, 154,687.35 and 67,647.15

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Solution

The fourth proportional to 103,176.90, 154,687.35 and 67,647.15 is: 101,419.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,176.90 : 154,687.35 = 67,647.15 : x
  2. Step 2: Convert to fraction form
    103,176.90/154,687.35 = 67,647.15/x
  3. Step 3: Cross multiply
    103,176.90x = 154,687.35 × 67,647.15
  4. Step 4: Simplify right side
    103,176.90x = 10,464,158,051.46
  5. Step 5: Solve for x
    x = 10,464,158,051.46/103,176.90
  6. Step 6: Final answer
    x = 101,419.58

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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.