Home / 129,177.08-193,802.67-54,258.69

Finding the Fourth Proportional to 129,177.08, 193,802.67 and 54,258.69

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Solution

The fourth proportional to 129,177.08, 193,802.67 and 54,258.69 is: 81,403.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,177.08 : 193,802.67 = 54,258.69 : x
  2. Step 2: Convert to fraction form
    129,177.08/193,802.67 = 54,258.69/x
  3. Step 3: Cross multiply
    129,177.08x = 193,802.67 × 54,258.69
  4. Step 4: Simplify right side
    129,177.08x = 10,515,478,992.70
  5. Step 5: Solve for x
    x = 10,515,478,992.70/129,177.08
  6. Step 6: Final answer
    x = 81,403.60

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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.