Home / 199,392.35-275,005.85-127,779.03

Finding the Fourth Proportional to 199,392.35, 275,005.85 and 127,779.03

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Solution

The fourth proportional to 199,392.35, 275,005.85 and 127,779.03 is: 176,235.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,392.35 : 275,005.85 = 127,779.03 : x
  2. Step 2: Convert to fraction form
    199,392.35/275,005.85 = 127,779.03/x
  3. Step 3: Cross multiply
    199,392.35x = 275,005.85 × 127,779.03
  4. Step 4: Simplify right side
    199,392.35x = 35,139,980,118.43
  5. Step 5: Solve for x
    x = 35,139,980,118.43/199,392.35
  6. Step 6: Final answer
    x = 176,235.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.