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Finding the Fourth Proportional to 162,528.75, 243,841.77 and 69,041.79

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Solution

The fourth proportional to 162,528.75, 243,841.77 and 69,041.79 is: 103,583.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,528.75 : 243,841.77 = 69,041.79 : x
  2. Step 2: Convert to fraction form
    162,528.75/243,841.77 = 69,041.79/x
  3. Step 3: Cross multiply
    162,528.75x = 243,841.77 × 69,041.79
  4. Step 4: Simplify right side
    162,528.75x = 16,835,272,277.57
  5. Step 5: Solve for x
    x = 16,835,272,277.57/162,528.75
  6. Step 6: Final answer
    x = 103,583.35

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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.