Home / 211,987.58-292,541.01-115,190.42

Finding the Fourth Proportional to 211,987.58, 292,541.01 and 115,190.42

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Solution

The fourth proportional to 211,987.58, 292,541.01 and 115,190.42 is: 158,961.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,987.58 : 292,541.01 = 115,190.42 : x
  2. Step 2: Convert to fraction form
    211,987.58/292,541.01 = 115,190.42/x
  3. Step 3: Cross multiply
    211,987.58x = 292,541.01 × 115,190.42
  4. Step 4: Simplify right side
    211,987.58x = 33,697,921,809.12
  5. Step 5: Solve for x
    x = 33,697,921,809.12/211,987.58
  6. Step 6: Final answer
    x = 158,961.77

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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.