Home / 211,498.70-291,933.55-136,047.20

Finding the Fourth Proportional to 211,498.70, 291,933.55 and 136,047.20

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Solution

The fourth proportional to 211,498.70, 291,933.55 and 136,047.20 is: 187,787.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,498.70 : 291,933.55 = 136,047.20 : x
  2. Step 2: Convert to fraction form
    211,498.70/291,933.55 = 136,047.20/x
  3. Step 3: Cross multiply
    211,498.70x = 291,933.55 × 136,047.20
  4. Step 4: Simplify right side
    211,498.70x = 39,716,739,923.66
  5. Step 5: Solve for x
    x = 39,716,739,923.66/211,498.70
  6. Step 6: Final answer
    x = 187,787.16

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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.