Home / 211,123.68-291,351.60-114,328.80

Finding the Fourth Proportional to 211,123.68, 291,351.60 and 114,328.80

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Solution

The fourth proportional to 211,123.68, 291,351.60 and 114,328.80 is: 157,774.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,123.68 : 291,351.60 = 114,328.80 : x
  2. Step 2: Convert to fraction form
    211,123.68/291,351.60 = 114,328.80/x
  3. Step 3: Cross multiply
    211,123.68x = 291,351.60 × 114,328.80
  4. Step 4: Simplify right side
    211,123.68x = 33,309,878,806.08
  5. Step 5: Solve for x
    x = 33,309,878,806.08/211,123.68
  6. Step 6: Final answer
    x = 157,774.24

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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.