Home / 178,816.72-268,225.44-66,521.56

Finding the Fourth Proportional to 178,816.72, 268,225.44 and 66,521.56

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Solution

The fourth proportional to 178,816.72, 268,225.44 and 66,521.56 is: 99,782.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,816.72 : 268,225.44 = 66,521.56 : x
  2. Step 2: Convert to fraction form
    178,816.72/268,225.44 = 66,521.56/x
  3. Step 3: Cross multiply
    178,816.72x = 268,225.44 × 66,521.56
  4. Step 4: Simplify right side
    178,816.72x = 17,842,774,700.49
  5. Step 5: Solve for x
    x = 17,842,774,700.49/178,816.72
  6. Step 6: Final answer
    x = 99,782.47

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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.