Home / 188,299.02-259,853.09-103,421.55

Finding the Fourth Proportional to 188,299.02, 259,853.09 and 103,421.55

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Solution

The fourth proportional to 188,299.02, 259,853.09 and 103,421.55 is: 142,721.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,299.02 : 259,853.09 = 103,421.55 : x
  2. Step 2: Convert to fraction form
    188,299.02/259,853.09 = 103,421.55/x
  3. Step 3: Cross multiply
    188,299.02x = 259,853.09 × 103,421.55
  4. Step 4: Simplify right side
    188,299.02x = 26,874,408,822.98
  5. Step 5: Solve for x
    x = 26,874,408,822.98/188,299.02
  6. Step 6: Final answer
    x = 142,721.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.