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Finding the Fourth Proportional to 172,840.80, 259,341.39 and 73,024.30

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Solution

The fourth proportional to 172,840.80, 259,341.39 and 73,024.30 is: 109,570.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,840.80 : 259,341.39 = 73,024.30 : x
  2. Step 2: Convert to fraction form
    172,840.80/259,341.39 = 73,024.30/x
  3. Step 3: Cross multiply
    172,840.80x = 259,341.39 × 73,024.30
  4. Step 4: Simplify right side
    172,840.80x = 18,938,221,803.95
  5. Step 5: Solve for x
    x = 18,938,221,803.95/172,840.80
  6. Step 6: Final answer
    x = 109,570.32

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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.