Home / 145,804.14-218,735.37-45,979.74

Finding the Fourth Proportional to 145,804.14, 218,735.37 and 45,979.74

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Solution

The fourth proportional to 145,804.14, 218,735.37 and 45,979.74 is: 68,978.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,804.14 : 218,735.37 = 45,979.74 : x
  2. Step 2: Convert to fraction form
    145,804.14/218,735.37 = 45,979.74/x
  3. Step 3: Cross multiply
    145,804.14x = 218,735.37 × 45,979.74
  4. Step 4: Simplify right side
    145,804.14x = 10,057,395,441.40
  5. Step 5: Solve for x
    x = 10,057,395,441.40/145,804.14
  6. Step 6: Final answer
    x = 68,978.81

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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.