Home / 126,140.59-174,075.38-68,779.45

Finding the Fourth Proportional to 126,140.59, 174,075.38 and 68,779.45

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Solution

The fourth proportional to 126,140.59, 174,075.38 and 68,779.45 is: 94,916.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,140.59 : 174,075.38 = 68,779.45 : x
  2. Step 2: Convert to fraction form
    126,140.59/174,075.38 = 68,779.45/x
  3. Step 3: Cross multiply
    126,140.59x = 174,075.38 × 68,779.45
  4. Step 4: Simplify right side
    126,140.59x = 11,972,807,680.67
  5. Step 5: Solve for x
    x = 11,972,807,680.67/126,140.59
  6. Step 6: Final answer
    x = 94,916.38

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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.