Home / 97,880.94-135,140.67-75,179.34

Finding the Fourth Proportional to 97,880.94, 135,140.67 and 75,179.34

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Solution

The fourth proportional to 97,880.94, 135,140.67 and 75,179.34 is: 103,797.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,880.94 : 135,140.67 = 75,179.34 : x
  2. Step 2: Convert to fraction form
    97,880.94/135,140.67 = 75,179.34/x
  3. Step 3: Cross multiply
    97,880.94x = 135,140.67 × 75,179.34
  4. Step 4: Simplify right side
    97,880.94x = 10,159,786,377.76
  5. Step 5: Solve for x
    x = 10,159,786,377.76/97,880.94
  6. Step 6: Final answer
    x = 103,797.39

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1.5x scale

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.