Home / 103,300.03-154,929.64-28,400.86

Finding the Fourth Proportional to 103,300.03, 154,929.64 and 28,400.86

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Solution

The fourth proportional to 103,300.03, 154,929.64 and 28,400.86 is: 42,595.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,300.03 : 154,929.64 = 28,400.86 : x
  2. Step 2: Convert to fraction form
    103,300.03/154,929.64 = 28,400.86/x
  3. Step 3: Cross multiply
    103,300.03x = 154,929.64 × 28,400.86
  4. Step 4: Simplify right side
    103,300.03x = 4,400,135,015.49
  5. Step 5: Solve for x
    x = 4,400,135,015.49/103,300.03
  6. Step 6: Final answer
    x = 42,595.68

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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.