Home / 211,125.63-291,360.38-115,637.61

Finding the Fourth Proportional to 211,125.63, 291,360.38 and 115,637.61

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Solution

The fourth proportional to 211,125.63, 291,360.38 and 115,637.61 is: 159,583.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,125.63 : 291,360.38 = 115,637.61 : x
  2. Step 2: Convert to fraction form
    211,125.63/291,360.38 = 115,637.61/x
  3. Step 3: Cross multiply
    211,125.63x = 291,360.38 × 115,637.61
  4. Step 4: Simplify right side
    211,125.63x = 33,692,217,413.70
  5. Step 5: Solve for x
    x = 33,692,217,413.70/211,125.63
  6. Step 6: Final answer
    x = 159,583.74

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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.