Home / 211,033.05-291,225.47-115,539.72

Finding the Fourth Proportional to 211,033.05, 291,225.47 and 115,539.72

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Solution

The fourth proportional to 211,033.05, 291,225.47 and 115,539.72 is: 159,444.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,033.05 : 291,225.47 = 115,539.72 : x
  2. Step 2: Convert to fraction form
    211,033.05/291,225.47 = 115,539.72/x
  3. Step 3: Cross multiply
    211,033.05x = 291,225.47 × 115,539.72
  4. Step 4: Simplify right side
    211,033.05x = 33,648,108,682.97
  5. Step 5: Solve for x
    x = 33,648,108,682.97/211,033.05
  6. Step 6: Final answer
    x = 159,444.73

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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.