Home / 199,430.20-298,742.10-124,319.80

Finding the Fourth Proportional to 199,430.20, 298,742.10 and 124,319.80

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Solution

The fourth proportional to 199,430.20, 298,742.10 and 124,319.80 is: 186,228.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,430.20 : 298,742.10 = 124,319.80 : x
  2. Step 2: Convert to fraction form
    199,430.20/298,742.10 = 124,319.80/x
  3. Step 3: Cross multiply
    199,430.20x = 298,742.10 × 124,319.80
  4. Step 4: Simplify right side
    199,430.20x = 37,139,558,123.58
  5. Step 5: Solve for x
    x = 37,139,558,123.58/199,430.20
  6. Step 6: Final answer
    x = 186,228.36

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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.