Home / 91,880.10-137,852.55-88,640.10

Finding the Fourth Proportional to 91,880.10, 137,852.55 and 88,640.10

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Solution

The fourth proportional to 91,880.10, 137,852.55 and 88,640.10 is: 132,991.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,880.10 : 137,852.55 = 88,640.10 : x
  2. Step 2: Convert to fraction form
    91,880.10/137,852.55 = 88,640.10/x
  3. Step 3: Cross multiply
    91,880.10x = 137,852.55 × 88,640.10
  4. Step 4: Simplify right side
    91,880.10x = 12,219,263,817.26
  5. Step 5: Solve for x
    x = 12,219,263,817.26/91,880.10
  6. Step 6: Final answer
    x = 132,991.41

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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.