Home / 199,385.15-298,760.40-139,526.96

Finding the Fourth Proportional to 199,385.15, 298,760.40 and 139,526.96

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Solution

The fourth proportional to 199,385.15, 298,760.40 and 139,526.96 is: 209,068.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,385.15 : 298,760.40 = 139,526.96 : x
  2. Step 2: Convert to fraction form
    199,385.15/298,760.40 = 139,526.96/x
  3. Step 3: Cross multiply
    199,385.15x = 298,760.40 × 139,526.96
  4. Step 4: Simplify right side
    199,385.15x = 41,685,128,886.58
  5. Step 5: Solve for x
    x = 41,685,128,886.58/199,385.15
  6. Step 6: Final answer
    x = 209,068.38

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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.