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Finding the Fourth Proportional to 163,907.40, 245,861.10 and 53,099.40

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Solution

The fourth proportional to 163,907.40, 245,861.10 and 53,099.40 is: 79,649.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,907.40 : 245,861.10 = 53,099.40 : x
  2. Step 2: Convert to fraction form
    163,907.40/245,861.10 = 53,099.40/x
  3. Step 3: Cross multiply
    163,907.40x = 245,861.10 × 53,099.40
  4. Step 4: Simplify right side
    163,907.40x = 13,055,076,893.34
  5. Step 5: Solve for x
    x = 13,055,076,893.34/163,907.40
  6. Step 6: Final answer
    x = 79,649.10

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.