Home / 189,679.02-284,457.78-105,479.52

Finding the Fourth Proportional to 189,679.02, 284,457.78 and 105,479.52

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Solution

The fourth proportional to 189,679.02, 284,457.78 and 105,479.52 is: 158,185.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,679.02 : 284,457.78 = 105,479.52 : x
  2. Step 2: Convert to fraction form
    189,679.02/284,457.78 = 105,479.52/x
  3. Step 3: Cross multiply
    189,679.02x = 284,457.78 × 105,479.52
  4. Step 4: Simplify right side
    189,679.02x = 30,004,470,094.67
  5. Step 5: Solve for x
    x = 30,004,470,094.67/189,679.02
  6. Step 6: Final answer
    x = 158,185.50

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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.