Home / 103,070.33-154,603.31-28,190.48

Finding the Fourth Proportional to 103,070.33, 154,603.31 and 28,190.48

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Solution

The fourth proportional to 103,070.33, 154,603.31 and 28,190.48 is: 42,285.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,070.33 : 154,603.31 = 28,190.48 : x
  2. Step 2: Convert to fraction form
    103,070.33/154,603.31 = 28,190.48/x
  3. Step 3: Cross multiply
    103,070.33x = 154,603.31 × 28,190.48
  4. Step 4: Simplify right side
    103,070.33x = 4,358,340,901.22
  5. Step 5: Solve for x
    x = 4,358,340,901.22/103,070.33
  6. Step 6: Final answer
    x = 42,285.12

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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.