Home / 103,238.59-154,856.06-28,358.45

Finding the Fourth Proportional to 103,238.59, 154,856.06 and 28,358.45

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Solution

The fourth proportional to 103,238.59, 154,856.06 and 28,358.45 is: 42,537.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,238.59 : 154,856.06 = 28,358.45 : x
  2. Step 2: Convert to fraction form
    103,238.59/154,856.06 = 28,358.45/x
  3. Step 3: Cross multiply
    103,238.59x = 154,856.06 × 28,358.45
  4. Step 4: Simplify right side
    103,238.59x = 4,391,477,131.32
  5. Step 5: Solve for x
    x = 4,391,477,131.32/103,238.59
  6. Step 6: Final answer
    x = 42,537.17

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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.