Home / 157,286.48-217,054.23-85,666.28

Finding the Fourth Proportional to 157,286.48, 217,054.23 and 85,666.28

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Solution

The fourth proportional to 157,286.48, 217,054.23 and 85,666.28 is: 118,218.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,286.48 : 217,054.23 = 85,666.28 : x
  2. Step 2: Convert to fraction form
    157,286.48/217,054.23 = 85,666.28/x
  3. Step 3: Cross multiply
    157,286.48x = 217,054.23 × 85,666.28
  4. Step 4: Simplify right side
    157,286.48x = 18,594,228,442.36
  5. Step 5: Solve for x
    x = 18,594,228,442.36/157,286.48
  6. Step 6: Final answer
    x = 118,218.86

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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.