Home / 130,212.72-195,317.64-98,815.64

Finding the Fourth Proportional to 130,212.72, 195,317.64 and 98,815.64

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Solution

The fourth proportional to 130,212.72, 195,317.64 and 98,815.64 is: 148,222.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,212.72 : 195,317.64 = 98,815.64 : x
  2. Step 2: Convert to fraction form
    130,212.72/195,317.64 = 98,815.64/x
  3. Step 3: Cross multiply
    130,212.72x = 195,317.64 × 98,815.64
  4. Step 4: Simplify right side
    130,212.72x = 19,300,437,599.89
  5. Step 5: Solve for x
    x = 19,300,437,599.89/130,212.72
  6. Step 6: Final answer
    x = 148,222.37

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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.