Home / 145,939.51-201,386.41-82,263.79

Finding the Fourth Proportional to 145,939.51, 201,386.41 and 82,263.79

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Solution

The fourth proportional to 145,939.51, 201,386.41 and 82,263.79 is: 113,518.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,939.51 : 201,386.41 = 82,263.79 : x
  2. Step 2: Convert to fraction form
    145,939.51/201,386.41 = 82,263.79/x
  3. Step 3: Cross multiply
    145,939.51x = 201,386.41 × 82,263.79
  4. Step 4: Simplify right side
    145,939.51x = 16,566,809,341.09
  5. Step 5: Solve for x
    x = 16,566,809,341.09/145,939.51
  6. Step 6: Final answer
    x = 113,518.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.