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Finding the Fourth Proportional to 139,762.13, 209,654.12 and 46,267.88

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Solution

The fourth proportional to 139,762.13, 209,654.12 and 46,267.88 is: 69,405.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,762.13 : 209,654.12 = 46,267.88 : x
  2. Step 2: Convert to fraction form
    139,762.13/209,654.12 = 46,267.88/x
  3. Step 3: Cross multiply
    139,762.13x = 209,654.12 × 46,267.88
  4. Step 4: Simplify right side
    139,762.13x = 9,700,250,733.06
  5. Step 5: Solve for x
    x = 9,700,250,733.06/139,762.13
  6. Step 6: Final answer
    x = 69,405.43

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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.