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Finding the Fourth Proportional to 172,665.02, 259,015.52 and 66,048.77

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Solution

The fourth proportional to 172,665.02, 259,015.52 and 66,048.77 is: 99,080.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,665.02 : 259,015.52 = 66,048.77 : x
  2. Step 2: Convert to fraction form
    172,665.02/259,015.52 = 66,048.77/x
  3. Step 3: Cross multiply
    172,665.02x = 259,015.52 × 66,048.77
  4. Step 4: Simplify right side
    172,665.02x = 17,107,655,862.61
  5. Step 5: Solve for x
    x = 17,107,655,862.61/172,665.02
  6. Step 6: Final answer
    x = 99,080.03

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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.