Home / 211,082.35-291,284.90-115,587.40

Finding the Fourth Proportional to 211,082.35, 291,284.90 and 115,587.40

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Solution

The fourth proportional to 211,082.35, 291,284.90 and 115,587.40 is: 159,505.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,082.35 : 291,284.90 = 115,587.40 : x
  2. Step 2: Convert to fraction form
    211,082.35/291,284.90 = 115,587.40/x
  3. Step 3: Cross multiply
    211,082.35x = 291,284.90 × 115,587.40
  4. Step 4: Simplify right side
    211,082.35x = 33,668,863,672.32
  5. Step 5: Solve for x
    x = 33,668,863,672.32/211,082.35
  6. Step 6: Final answer
    x = 159,505.82

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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.