Home / 111,955.12-167,932.44-76,788.16

Finding the Fourth Proportional to 111,955.12, 167,932.44 and 76,788.16

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Solution

The fourth proportional to 111,955.12, 167,932.44 and 76,788.16 is: 115,182.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,955.12 : 167,932.44 = 76,788.16 : x
  2. Step 2: Convert to fraction form
    111,955.12/167,932.44 = 76,788.16/x
  3. Step 3: Cross multiply
    111,955.12x = 167,932.44 × 76,788.16
  4. Step 4: Simplify right side
    111,955.12x = 12,895,223,071.91
  5. Step 5: Solve for x
    x = 12,895,223,071.91/111,955.12
  6. Step 6: Final answer
    x = 115,182.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.