Home / 155,442.09-214,501.23-87,462

Finding the Fourth Proportional to 155,442.09, 214,501.23 and 87,462

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Solution

The fourth proportional to 155,442.09, 214,501.23 and 87,462 is: 120,692.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,442.09 : 214,501.23 = 87,462 : x
  2. Step 2: Convert to fraction form
    155,442.09/214,501.23 = 87,462/x
  3. Step 3: Cross multiply
    155,442.09x = 214,501.23 × 87,462
  4. Step 4: Simplify right side
    155,442.09x = 18,760,706,578.26
  5. Step 5: Solve for x
    x = 18,760,706,578.26/155,442.09
  6. Step 6: Final answer
    x = 120,692.58

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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.