Home / 155,405.40-233,108.38-66,601.32

Finding the Fourth Proportional to 155,405.40, 233,108.38 and 66,601.32

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Solution

The fourth proportional to 155,405.40, 233,108.38 and 66,601.32 is: 99,902.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,405.40 : 233,108.38 = 66,601.32 : x
  2. Step 2: Convert to fraction form
    155,405.40/233,108.38 = 66,601.32/x
  3. Step 3: Cross multiply
    155,405.40x = 233,108.38 × 66,601.32
  4. Step 4: Simplify right side
    155,405.40x = 15,525,325,811.06
  5. Step 5: Solve for x
    x = 15,525,325,811.06/155,405.40
  6. Step 6: Final answer
    x = 99,902.10

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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.