Home / 152,540.28-210,505.86-84,558.30

Finding the Fourth Proportional to 152,540.28, 210,505.86 and 84,558.30

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Solution

The fourth proportional to 152,540.28, 210,505.86 and 84,558.30 is: 116,690.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,540.28 : 210,505.86 = 84,558.30 : x
  2. Step 2: Convert to fraction form
    152,540.28/210,505.86 = 84,558.30/x
  3. Step 3: Cross multiply
    152,540.28x = 210,505.86 × 84,558.30
  4. Step 4: Simplify right side
    152,540.28x = 17,800,017,661.64
  5. Step 5: Solve for x
    x = 17,800,017,661.64/152,540.28
  6. Step 6: Final answer
    x = 116,690.61

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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.