Home / 128,723.70-193,085.55-58,739.70

Finding the Fourth Proportional to 128,723.70, 193,085.55 and 58,739.70

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Solution

The fourth proportional to 128,723.70, 193,085.55 and 58,739.70 is: 88,109.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,723.70 : 193,085.55 = 58,739.70 : x
  2. Step 2: Convert to fraction form
    128,723.70/193,085.55 = 58,739.70/x
  3. Step 3: Cross multiply
    128,723.70x = 193,085.55 × 58,739.70
  4. Step 4: Simplify right side
    128,723.70x = 11,341,787,281.34
  5. Step 5: Solve for x
    x = 11,341,787,281.34/128,723.70
  6. Step 6: Final answer
    x = 88,109.55

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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.