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Finding the Fourth Proportional to 173,075.84, 235,640.64 and 172,542.72

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Solution

The fourth proportional to 173,075.84, 235,640.64 and 172,542.72 is: 234,914.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,075.84 : 235,640.64 = 172,542.72 : x
  2. Step 2: Convert to fraction form
    173,075.84/235,640.64 = 172,542.72/x
  3. Step 3: Cross multiply
    173,075.84x = 235,640.64 × 172,542.72
  4. Step 4: Simplify right side
    173,075.84x = 40,658,076,968.14
  5. Step 5: Solve for x
    x = 40,658,076,968.14/173,075.84
  6. Step 6: Final answer
    x = 234,914.80

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.