Home / 139,631.80-209,447.70-46,125.40

Finding the Fourth Proportional to 139,631.80, 209,447.70 and 46,125.40

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Solution

The fourth proportional to 139,631.80, 209,447.70 and 46,125.40 is: 69,188.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,631.80 : 209,447.70 = 46,125.40 : x
  2. Step 2: Convert to fraction form
    139,631.80/209,447.70 = 46,125.40/x
  3. Step 3: Cross multiply
    139,631.80x = 209,447.70 × 46,125.40
  4. Step 4: Simplify right side
    139,631.80x = 9,660,858,941.58
  5. Step 5: Solve for x
    x = 9,660,858,941.58/139,631.80
  6. Step 6: Final answer
    x = 69,188.10

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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.