Home / 148,717.72-205,268.34-85,075.48

Finding the Fourth Proportional to 148,717.72, 205,268.34 and 85,075.48

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Solution

The fourth proportional to 148,717.72, 205,268.34 and 85,075.48 is: 117,425.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,717.72 : 205,268.34 = 85,075.48 : x
  2. Step 2: Convert to fraction form
    148,717.72/205,268.34 = 85,075.48/x
  3. Step 3: Cross multiply
    148,717.72x = 205,268.34 × 85,075.48
  4. Step 4: Simplify right side
    148,717.72x = 17,463,302,554.30
  5. Step 5: Solve for x
    x = 17,463,302,554.30/148,717.72
  6. Step 6: Final answer
    x = 117,425.84

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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.