Home / 157,435.19-217,257.33-85,814.59

Finding the Fourth Proportional to 157,435.19, 217,257.33 and 85,814.59

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Solution

The fourth proportional to 157,435.19, 217,257.33 and 85,814.59 is: 118,422.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,435.19 : 217,257.33 = 85,814.59 : x
  2. Step 2: Convert to fraction form
    157,435.19/217,257.33 = 85,814.59/x
  3. Step 3: Cross multiply
    157,435.19x = 217,257.33 × 85,814.59
  4. Step 4: Simplify right side
    157,435.19x = 18,643,847,612.16
  5. Step 5: Solve for x
    x = 18,643,847,612.16/157,435.19
  6. Step 6: Final answer
    x = 118,422.37

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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.