Home / 139,923.40-209,933.70-61,094.20

Finding the Fourth Proportional to 139,923.40, 209,933.70 and 61,094.20

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Solution

The fourth proportional to 139,923.40, 209,933.70 and 61,094.20 is: 91,662.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,923.40 : 209,933.70 = 61,094.20 : x
  2. Step 2: Convert to fraction form
    139,923.40/209,933.70 = 61,094.20/x
  3. Step 3: Cross multiply
    139,923.40x = 209,933.70 × 61,094.20
  4. Step 4: Simplify right side
    139,923.40x = 12,825,731,454.54
  5. Step 5: Solve for x
    x = 12,825,731,454.54/139,923.40
  6. Step 6: Final answer
    x = 91,662.52

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1.5x scale

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.