Home / 145,816.12-201,211.86-82,165.24

Finding the Fourth Proportional to 145,816.12, 201,211.86 and 82,165.24

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Solution

The fourth proportional to 145,816.12, 201,211.86 and 82,165.24 is: 113,379.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,816.12 : 201,211.86 = 82,165.24 : x
  2. Step 2: Convert to fraction form
    145,816.12/201,211.86 = 82,165.24/x
  3. Step 3: Cross multiply
    145,816.12x = 201,211.86 × 82,165.24
  4. Step 4: Simplify right side
    145,816.12x = 16,532,620,767.75
  5. Step 5: Solve for x
    x = 16,532,620,767.75/145,816.12
  6. Step 6: Final answer
    x = 113,379.93

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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.