Home / 140,064.36-193,284.45-79,641.60

Finding the Fourth Proportional to 140,064.36, 193,284.45 and 79,641.60

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Solution

The fourth proportional to 140,064.36, 193,284.45 and 79,641.60 is: 109,902.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,064.36 : 193,284.45 = 79,641.60 : x
  2. Step 2: Convert to fraction form
    140,064.36/193,284.45 = 79,641.60/x
  3. Step 3: Cross multiply
    140,064.36x = 193,284.45 × 79,641.60
  4. Step 4: Simplify right side
    140,064.36x = 15,393,482,853.12
  5. Step 5: Solve for x
    x = 15,393,482,853.12/140,064.36
  6. Step 6: Final answer
    x = 109,902.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.