Home / 130,318.20-195,428.70-51,416.10

Finding the Fourth Proportional to 130,318.20, 195,428.70 and 51,416.10

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Solution

The fourth proportional to 130,318.20, 195,428.70 and 51,416.10 is: 77,104.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,318.20 : 195,428.70 = 51,416.10 : x
  2. Step 2: Convert to fraction form
    130,318.20/195,428.70 = 51,416.10/x
  3. Step 3: Cross multiply
    130,318.20x = 195,428.70 × 51,416.10
  4. Step 4: Simplify right side
    130,318.20x = 10,048,181,582.07
  5. Step 5: Solve for x
    x = 10,048,181,582.07/130,318.20
  6. Step 6: Final answer
    x = 77,104.98

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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.