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Finding the Fourth Proportional to 172,394.56, 258,592.16 and 54,075.07

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Solution

The fourth proportional to 172,394.56, 258,592.16 and 54,075.07 is: 81,112.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,394.56 : 258,592.16 = 54,075.07 : x
  2. Step 2: Convert to fraction form
    172,394.56/258,592.16 = 54,075.07/x
  3. Step 3: Cross multiply
    172,394.56x = 258,592.16 × 54,075.07
  4. Step 4: Simplify right side
    172,394.56x = 13,983,388,883.08
  5. Step 5: Solve for x
    x = 13,983,388,883.08/172,394.56
  6. Step 6: Final answer
    x = 81,112.70

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1.5x scale

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.