Home / 211,383.16-291,701.02-115,887.76

Finding the Fourth Proportional to 211,383.16, 291,701.02 and 115,887.76

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Solution

The fourth proportional to 211,383.16, 291,701.02 and 115,887.76 is: 159,920.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,383.16 : 291,701.02 = 115,887.76 : x
  2. Step 2: Convert to fraction form
    211,383.16/291,701.02 = 115,887.76/x
  3. Step 3: Cross multiply
    211,383.16x = 291,701.02 × 115,887.76
  4. Step 4: Simplify right side
    211,383.16x = 33,804,577,797.52
  5. Step 5: Solve for x
    x = 33,804,577,797.52/211,383.16
  6. Step 6: Final answer
    x = 159,920.87

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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.