Home / 103,272.12-154,710.69-69,828.03

Finding the Fourth Proportional to 103,272.12, 154,710.69 and 69,828.03

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Solution

The fourth proportional to 103,272.12, 154,710.69 and 69,828.03 is: 104,608.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,272.12 : 154,710.69 = 69,828.03 : x
  2. Step 2: Convert to fraction form
    103,272.12/154,710.69 = 69,828.03/x
  3. Step 3: Cross multiply
    103,272.12x = 154,710.69 × 69,828.03
  4. Step 4: Simplify right side
    103,272.12x = 10,803,142,702.64
  5. Step 5: Solve for x
    x = 10,803,142,702.64/103,272.12
  6. Step 6: Final answer
    x = 104,608.51

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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.