Home / 136,510.80-204,766.20-89,271.60

Finding the Fourth Proportional to 136,510.80, 204,766.20 and 89,271.60

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Solution

The fourth proportional to 136,510.80, 204,766.20 and 89,271.60 is: 133,907.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,510.80 : 204,766.20 = 89,271.60 : x
  2. Step 2: Convert to fraction form
    136,510.80/204,766.20 = 89,271.60/x
  3. Step 3: Cross multiply
    136,510.80x = 204,766.20 × 89,271.60
  4. Step 4: Simplify right side
    136,510.80x = 18,279,806,299.92
  5. Step 5: Solve for x
    x = 18,279,806,299.92/136,510.80
  6. Step 6: Final answer
    x = 133,907.40

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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.