Home / 103,238.84-154,856.44-28,358.70

Finding the Fourth Proportional to 103,238.84, 154,856.44 and 28,358.70

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Solution

The fourth proportional to 103,238.84, 154,856.44 and 28,358.70 is: 42,537.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,238.84 : 154,856.44 = 28,358.70 : x
  2. Step 2: Convert to fraction form
    103,238.84/154,856.44 = 28,358.70/x
  3. Step 3: Cross multiply
    103,238.84x = 154,856.44 × 28,358.70
  4. Step 4: Simplify right side
    103,238.84x = 4,391,527,325.03
  5. Step 5: Solve for x
    x = 4,391,527,325.03/103,238.84
  6. Step 6: Final answer
    x = 42,537.55

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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.