Home / 199,619.40-299,429.10-132,259.80

Finding the Fourth Proportional to 199,619.40, 299,429.10 and 132,259.80

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Solution

The fourth proportional to 199,619.40, 299,429.10 and 132,259.80 is: 198,389.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,619.40 : 299,429.10 = 132,259.80 : x
  2. Step 2: Convert to fraction form
    199,619.40/299,429.10 = 132,259.80/x
  3. Step 3: Cross multiply
    199,619.40x = 299,429.10 × 132,259.80
  4. Step 4: Simplify right side
    199,619.40x = 39,602,432,880.18
  5. Step 5: Solve for x
    x = 39,602,432,880.18/199,619.40
  6. Step 6: Final answer
    x = 198,389.70

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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.