Home / 145,730.80-201,109.24-82,069.68

Finding the Fourth Proportional to 145,730.80, 201,109.24 and 82,069.68

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Solution

The fourth proportional to 145,730.80, 201,109.24 and 82,069.68 is: 113,256.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,730.80 : 201,109.24 = 82,069.68 : x
  2. Step 2: Convert to fraction form
    145,730.80/201,109.24 = 82,069.68/x
  3. Step 3: Cross multiply
    145,730.80x = 201,109.24 × 82,069.68
  4. Step 4: Simplify right side
    145,730.80x = 16,504,970,971.84
  5. Step 5: Solve for x
    x = 16,504,970,971.84/145,730.80
  6. Step 6: Final answer
    x = 113,256.57

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1.5x scale

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.