Home / 130,135.20-179,586.24-70,519.20

Finding the Fourth Proportional to 130,135.20, 179,586.24 and 70,519.20

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Solution

The fourth proportional to 130,135.20, 179,586.24 and 70,519.20 is: 97,316.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,135.20 : 179,586.24 = 70,519.20 : x
  2. Step 2: Convert to fraction form
    130,135.20/179,586.24 = 70,519.20/x
  3. Step 3: Cross multiply
    130,135.20x = 179,586.24 × 70,519.20
  4. Step 4: Simplify right side
    130,135.20x = 12,664,277,975.81
  5. Step 5: Solve for x
    x = 12,664,277,975.81/130,135.20
  6. Step 6: Final answer
    x = 97,316.31

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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.