Home / 211,033.66-291,214.98-115,521.90

Finding the Fourth Proportional to 211,033.66, 291,214.98 and 115,521.90

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Solution

The fourth proportional to 211,033.66, 291,214.98 and 115,521.90 is: 159,413.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,033.66 : 291,214.98 = 115,521.90 : x
  2. Step 2: Convert to fraction form
    211,033.66/291,214.98 = 115,521.90/x
  3. Step 3: Cross multiply
    211,033.66x = 291,214.98 × 115,521.90
  4. Step 4: Simplify right side
    211,033.66x = 33,641,707,798.06
  5. Step 5: Solve for x
    x = 33,641,707,798.06/211,033.66
  6. Step 6: Final answer
    x = 159,413.94

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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.