Home / 211,397.72-316,674.08-127,111.74

Finding the Fourth Proportional to 211,397.72, 316,674.08 and 127,111.74

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Solution

The fourth proportional to 211,397.72, 316,674.08 and 127,111.74 is: 190,413.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,397.72 : 316,674.08 = 127,111.74 : x
  2. Step 2: Convert to fraction form
    211,397.72/316,674.08 = 127,111.74/x
  3. Step 3: Cross multiply
    211,397.72x = 316,674.08 × 127,111.74
  4. Step 4: Simplify right side
    211,397.72x = 40,252,993,321.70
  5. Step 5: Solve for x
    x = 40,252,993,321.70/211,397.72
  6. Step 6: Final answer
    x = 190,413.56

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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.