Home / 155,966.40-233,949.60-89,611.20

Finding the Fourth Proportional to 155,966.40, 233,949.60 and 89,611.20

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Solution

The fourth proportional to 155,966.40, 233,949.60 and 89,611.20 is: 134,416.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,966.40 : 233,949.60 = 89,611.20 : x
  2. Step 2: Convert to fraction form
    155,966.40/233,949.60 = 89,611.20/x
  3. Step 3: Cross multiply
    155,966.40x = 233,949.60 × 89,611.20
  4. Step 4: Simplify right side
    155,966.40x = 20,964,504,395.52
  5. Step 5: Solve for x
    x = 20,964,504,395.52/155,966.40
  6. Step 6: Final answer
    x = 134,416.80

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1.5x scale

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.