Home / 211,043.43-291,228.75-115,531.74

Finding the Fourth Proportional to 211,043.43, 291,228.75 and 115,531.74

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Solution

The fourth proportional to 211,043.43, 291,228.75 and 115,531.74 is: 159,427.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,043.43 : 291,228.75 = 115,531.74 : x
  2. Step 2: Convert to fraction form
    211,043.43/291,228.75 = 115,531.74/x
  3. Step 3: Cross multiply
    211,043.43x = 291,228.75 × 115,531.74
  4. Step 4: Simplify right side
    211,043.43x = 33,646,164,225.53
  5. Step 5: Solve for x
    x = 33,646,164,225.53/211,043.43
  6. Step 6: Final answer
    x = 159,427.68

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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.