Home / 145,815.12-201,210.48-82,164.24

Finding the Fourth Proportional to 145,815.12, 201,210.48 and 82,164.24

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Solution

The fourth proportional to 145,815.12, 201,210.48 and 82,164.24 is: 113,378.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,815.12 : 201,210.48 = 82,164.24 : x
  2. Step 2: Convert to fraction form
    145,815.12/201,210.48 = 82,164.24/x
  3. Step 3: Cross multiply
    145,815.12x = 201,210.48 × 82,164.24
  4. Step 4: Simplify right side
    145,815.12x = 16,532,306,169.24
  5. Step 5: Solve for x
    x = 16,532,306,169.24/145,815.12
  6. Step 6: Final answer
    x = 113,378.55

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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.