Home / 145,729.80-201,107.86-82,068.68

Finding the Fourth Proportional to 145,729.80, 201,107.86 and 82,068.68

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Solution

The fourth proportional to 145,729.80, 201,107.86 and 82,068.68 is: 113,255.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,729.80 : 201,107.86 = 82,068.68 : x
  2. Step 2: Convert to fraction form
    145,729.80/201,107.86 = 82,068.68/x
  3. Step 3: Cross multiply
    145,729.80x = 201,107.86 × 82,068.68
  4. Step 4: Simplify right side
    145,729.80x = 16,504,656,607.82
  5. Step 5: Solve for x
    x = 16,504,656,607.82/145,729.80
  6. Step 6: Final answer
    x = 113,255.19

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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.