Home / 128,850.08-193,330.74-69,727.46

Finding the Fourth Proportional to 128,850.08, 193,330.74 and 69,727.46

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Solution

The fourth proportional to 128,850.08, 193,330.74 and 69,727.46 is: 104,621.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,850.08 : 193,330.74 = 69,727.46 : x
  2. Step 2: Convert to fraction form
    128,850.08/193,330.74 = 69,727.46/x
  3. Step 3: Cross multiply
    128,850.08x = 193,330.74 × 69,727.46
  4. Step 4: Simplify right side
    128,850.08x = 13,480,461,440.12
  5. Step 5: Solve for x
    x = 13,480,461,440.12/128,850.08
  6. Step 6: Final answer
    x = 104,621.29

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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.