Home / 145,816.62-201,212.55-82,165.74

Finding the Fourth Proportional to 145,816.62, 201,212.55 and 82,165.74

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Solution

The fourth proportional to 145,816.62, 201,212.55 and 82,165.74 is: 113,380.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,816.62 : 201,212.55 = 82,165.74 : x
  2. Step 2: Convert to fraction form
    145,816.62/201,212.55 = 82,165.74/x
  3. Step 3: Cross multiply
    145,816.62x = 201,212.55 × 82,165.74
  4. Step 4: Simplify right side
    145,816.62x = 16,532,778,068.04
  5. Step 5: Solve for x
    x = 16,532,778,068.04/145,816.62
  6. Step 6: Final answer
    x = 113,380.62

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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.