Home / 157,322.20-217,103.56-85,702.26

Finding the Fourth Proportional to 157,322.20, 217,103.56 and 85,702.26

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Solution

The fourth proportional to 157,322.20, 217,103.56 and 85,702.26 is: 118,268.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,322.20 : 217,103.56 = 85,702.26 : x
  2. Step 2: Convert to fraction form
    157,322.20/217,103.56 = 85,702.26/x
  3. Step 3: Cross multiply
    157,322.20x = 217,103.56 × 85,702.26
  4. Step 4: Simplify right side
    157,322.20x = 18,606,265,746.05
  5. Step 5: Solve for x
    x = 18,606,265,746.05/157,322.20
  6. Step 6: Final answer
    x = 118,268.53

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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.