Home / 211,281.85-291,562.36-115,786.81

Finding the Fourth Proportional to 211,281.85, 291,562.36 and 115,786.81

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Solution

The fourth proportional to 211,281.85, 291,562.36 and 115,786.81 is: 159,782.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,281.85 : 291,562.36 = 115,786.81 : x
  2. Step 2: Convert to fraction form
    211,281.85/291,562.36 = 115,786.81/x
  3. Step 3: Cross multiply
    211,281.85x = 291,562.36 × 115,786.81
  4. Step 4: Simplify right side
    211,281.85x = 33,759,075,580.47
  5. Step 5: Solve for x
    x = 33,759,075,580.47/211,281.85
  6. Step 6: Final answer
    x = 159,782.18

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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.