Home / 103,068.19-154,600.09-28,188.34

Finding the Fourth Proportional to 103,068.19, 154,600.09 and 28,188.34

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Solution

The fourth proportional to 103,068.19, 154,600.09 and 28,188.34 is: 42,281.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,068.19 : 154,600.09 = 28,188.34 : x
  2. Step 2: Convert to fraction form
    103,068.19/154,600.09 = 28,188.34/x
  3. Step 3: Cross multiply
    103,068.19x = 154,600.09 × 28,188.34
  4. Step 4: Simplify right side
    103,068.19x = 4,357,919,408.74
  5. Step 5: Solve for x
    x = 4,357,919,408.74/103,068.19
  6. Step 6: Final answer
    x = 42,281.90

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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.