Home / 189,670.32-284,444.16-105,470.64

Finding the Fourth Proportional to 189,670.32, 284,444.16 and 105,470.64

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Solution

The fourth proportional to 189,670.32, 284,444.16 and 105,470.64 is: 158,171.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,670.32 : 284,444.16 = 105,470.64 : x
  2. Step 2: Convert to fraction form
    189,670.32/284,444.16 = 105,470.64/x
  3. Step 3: Cross multiply
    189,670.32x = 284,444.16 × 105,470.64
  4. Step 4: Simplify right side
    189,670.32x = 30,000,507,599.46
  5. Step 5: Solve for x
    x = 30,000,507,599.46/189,670.32
  6. Step 6: Final answer
    x = 158,171.86

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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.