Home / 157,328.20-217,111.84-85,708.26

Finding the Fourth Proportional to 157,328.20, 217,111.84 and 85,708.26

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Solution

The fourth proportional to 157,328.20, 217,111.84 and 85,708.26 is: 118,276.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,328.20 : 217,111.84 = 85,708.26 : x
  2. Step 2: Convert to fraction form
    157,328.20/217,111.84 = 85,708.26/x
  3. Step 3: Cross multiply
    157,328.20x = 217,111.84 × 85,708.26
  4. Step 4: Simplify right side
    157,328.20x = 18,608,278,031.80
  5. Step 5: Solve for x
    x = 18,608,278,031.80/157,328.20
  6. Step 6: Final answer
    x = 118,276.81

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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.