Home / 128,925.12-193,308.28-44,665.68

Finding the Fourth Proportional to 128,925.12, 193,308.28 and 44,665.68

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Solution

The fourth proportional to 128,925.12, 193,308.28 and 44,665.68 is: 66,971.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,925.12 : 193,308.28 = 44,665.68 : x
  2. Step 2: Convert to fraction form
    128,925.12/193,308.28 = 44,665.68/x
  3. Step 3: Cross multiply
    128,925.12x = 193,308.28 × 44,665.68
  4. Step 4: Simplify right side
    128,925.12x = 8,634,245,775.83
  5. Step 5: Solve for x
    x = 8,634,245,775.83/128,925.12
  6. Step 6: Final answer
    x = 66,971.01

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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.