Home / 111,120.12-153,345.96-60,819.12

Finding the Fourth Proportional to 111,120.12, 153,345.96 and 60,819.12

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Solution

The fourth proportional to 111,120.12, 153,345.96 and 60,819.12 is: 83,930.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,120.12 : 153,345.96 = 60,819.12 : x
  2. Step 2: Convert to fraction form
    111,120.12/153,345.96 = 60,819.12/x
  3. Step 3: Cross multiply
    111,120.12x = 153,345.96 × 60,819.12
  4. Step 4: Simplify right side
    111,120.12x = 9,326,366,342.76
  5. Step 5: Solve for x
    x = 9,326,366,342.76/111,120.12
  6. Step 6: Final answer
    x = 83,930.49

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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.