Home / 145,972.22-201,435.54-82,315.94

Finding the Fourth Proportional to 145,972.22, 201,435.54 and 82,315.94

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Solution

The fourth proportional to 145,972.22, 201,435.54 and 82,315.94 is: 113,592.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,972.22 : 201,435.54 = 82,315.94 : x
  2. Step 2: Convert to fraction form
    145,972.22/201,435.54 = 82,315.94/x
  3. Step 3: Cross multiply
    145,972.22x = 201,435.54 × 82,315.94
  4. Step 4: Simplify right side
    145,972.22x = 16,581,355,824.51
  5. Step 5: Solve for x
    x = 16,581,355,824.51/145,972.22
  6. Step 6: Final answer
    x = 113,592.54

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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.