Home / 82,068.80-113,183.52-66,148.16

Finding the Fourth Proportional to 82,068.80, 113,183.52 and 66,148.16

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Solution

The fourth proportional to 82,068.80, 113,183.52 and 66,148.16 is: 91,226.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,068.80 : 113,183.52 = 66,148.16 : x
  2. Step 2: Convert to fraction form
    82,068.80/113,183.52 = 66,148.16/x
  3. Step 3: Cross multiply
    82,068.80x = 113,183.52 × 66,148.16
  4. Step 4: Simplify right side
    82,068.80x = 7,486,881,590.32
  5. Step 5: Solve for x
    x = 7,486,881,590.32/82,068.80
  6. Step 6: Final answer
    x = 91,226.89

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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.