Home / 126,140.72-174,075.55-68,779.58

Finding the Fourth Proportional to 126,140.72, 174,075.55 and 68,779.58

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Solution

The fourth proportional to 126,140.72, 174,075.55 and 68,779.58 is: 94,916.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,140.72 : 174,075.55 = 68,779.58 : x
  2. Step 2: Convert to fraction form
    126,140.72/174,075.55 = 68,779.58/x
  3. Step 3: Cross multiply
    126,140.72x = 174,075.55 × 68,779.58
  4. Step 4: Simplify right side
    126,140.72x = 11,972,842,174.94
  5. Step 5: Solve for x
    x = 11,972,842,174.94/126,140.72
  6. Step 6: Final answer
    x = 94,916.56

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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.