Home / 459,116.70-688,727.46-122,171.28

Finding the Fourth Proportional to 459,116.70, 688,727.46 and 122,171.28

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Solution

The fourth proportional to 459,116.70, 688,727.46 and 122,171.28 is: 183,270.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,116.70 : 688,727.46 = 122,171.28 : x
  2. Step 2: Convert to fraction form
    459,116.70/688,727.46 = 122,171.28/x
  3. Step 3: Cross multiply
    459,116.70x = 688,727.46 × 122,171.28
  4. Step 4: Simplify right side
    459,116.70x = 84,142,715,359.35
  5. Step 5: Solve for x
    x = 84,142,715,359.35/459,116.70
  6. Step 6: Final answer
    x = 183,270.87

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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.