Home / 157,836.25-217,812.72-86,216.29

Finding the Fourth Proportional to 157,836.25, 217,812.72 and 86,216.29

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Solution

The fourth proportional to 157,836.25, 217,812.72 and 86,216.29 is: 118,977.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,836.25 : 217,812.72 = 86,216.29 : x
  2. Step 2: Convert to fraction form
    157,836.25/217,812.72 = 86,216.29/x
  3. Step 3: Cross multiply
    157,836.25x = 217,812.72 × 86,216.29
  4. Step 4: Simplify right side
    157,836.25x = 18,779,004,633.21
  5. Step 5: Solve for x
    x = 18,779,004,633.21/157,836.25
  6. Step 6: Final answer
    x = 118,977.77

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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.