Home / 211,189.56-291,444.12-115,700.28

Finding the Fourth Proportional to 211,189.56, 291,444.12 and 115,700.28

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Solution

The fourth proportional to 211,189.56, 291,444.12 and 115,700.28 is: 159,667.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,189.56 : 291,444.12 = 115,700.28 : x
  2. Step 2: Convert to fraction form
    211,189.56/291,444.12 = 115,700.28/x
  3. Step 3: Cross multiply
    211,189.56x = 291,444.12 × 115,700.28
  4. Step 4: Simplify right side
    211,189.56x = 33,720,166,288.35
  5. Step 5: Solve for x
    x = 33,720,166,288.35/211,189.56
  6. Step 6: Final answer
    x = 159,667.77

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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.