Home / 211,171.26-291,416.42-115,681.40

Finding the Fourth Proportional to 211,171.26, 291,416.42 and 115,681.40

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Solution

The fourth proportional to 211,171.26, 291,416.42 and 115,681.40 is: 159,640.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,171.26 : 291,416.42 = 115,681.40 : x
  2. Step 2: Convert to fraction form
    211,171.26/291,416.42 = 115,681.40/x
  3. Step 3: Cross multiply
    211,171.26x = 291,416.42 × 115,681.40
  4. Step 4: Simplify right side
    211,171.26x = 33,711,459,448.59
  5. Step 5: Solve for x
    x = 33,711,459,448.59/211,171.26
  6. Step 6: Final answer
    x = 159,640.38

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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.