Home / 211,456.36-291,810.18-115,963.76

Finding the Fourth Proportional to 211,456.36, 291,810.18 and 115,963.76

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Solution

The fourth proportional to 211,456.36, 291,810.18 and 115,963.76 is: 160,030.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,456.36 : 291,810.18 = 115,963.76 : x
  2. Step 2: Convert to fraction form
    211,456.36/291,810.18 = 115,963.76/x
  3. Step 3: Cross multiply
    211,456.36x = 291,810.18 × 115,963.76
  4. Step 4: Simplify right side
    211,456.36x = 33,839,405,679.08
  5. Step 5: Solve for x
    x = 33,839,405,679.08/211,456.36
  6. Step 6: Final answer
    x = 160,030.21

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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.