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Finding the Fourth Proportional to 162,563.28, 243,948.60 and 69,069.06

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Solution

The fourth proportional to 162,563.28, 243,948.60 and 69,069.06 is: 103,647.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,563.28 : 243,948.60 = 69,069.06 : x
  2. Step 2: Convert to fraction form
    162,563.28/243,948.60 = 69,069.06/x
  3. Step 3: Cross multiply
    162,563.28x = 243,948.60 × 69,069.06
  4. Step 4: Simplify right side
    162,563.28x = 16,849,300,490.32
  5. Step 5: Solve for x
    x = 16,849,300,490.32/162,563.28
  6. Step 6: Final answer
    x = 103,647.64

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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.