Home / 193,208.80-289,424.40-130,223.20

Finding the Fourth Proportional to 193,208.80, 289,424.40 and 130,223.20

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Solution

The fourth proportional to 193,208.80, 289,424.40 and 130,223.20 is: 195,072.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,208.80 : 289,424.40 = 130,223.20 : x
  2. Step 2: Convert to fraction form
    193,208.80/289,424.40 = 130,223.20/x
  3. Step 3: Cross multiply
    193,208.80x = 289,424.40 × 130,223.20
  4. Step 4: Simplify right side
    193,208.80x = 37,689,771,526.08
  5. Step 5: Solve for x
    x = 37,689,771,526.08/193,208.80
  6. Step 6: Final answer
    x = 195,072.75

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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.