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Finding the Fourth Proportional to 172,643.51, 259,064.09 and 93,764.63

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Solution

The fourth proportional to 172,643.51, 259,064.09 and 93,764.63 is: 140,700.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,643.51 : 259,064.09 = 93,764.63 : x
  2. Step 2: Convert to fraction form
    172,643.51/259,064.09 = 93,764.63/x
  3. Step 3: Cross multiply
    172,643.51x = 259,064.09 × 93,764.63
  4. Step 4: Simplify right side
    172,643.51x = 24,291,049,075.59
  5. Step 5: Solve for x
    x = 24,291,049,075.59/172,643.51
  6. Step 6: Final answer
    x = 140,700.62

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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.