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Finding the Fourth Proportional to 172,755.63, 259,075.56 and 66,114.81

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Solution

The fourth proportional to 172,755.63, 259,075.56 and 66,114.81 is: 99,150.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,755.63 : 259,075.56 = 66,114.81 : x
  2. Step 2: Convert to fraction form
    172,755.63/259,075.56 = 66,114.81/x
  3. Step 3: Cross multiply
    172,755.63x = 259,075.56 × 66,114.81
  4. Step 4: Simplify right side
    172,755.63x = 17,128,731,425.04
  5. Step 5: Solve for x
    x = 17,128,731,425.04/172,755.63
  6. Step 6: Final answer
    x = 99,150.06

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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.