Home / 157,416.24-217,228.05-85,794.72

Finding the Fourth Proportional to 157,416.24, 217,228.05 and 85,794.72

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Solution

The fourth proportional to 157,416.24, 217,228.05 and 85,794.72 is: 118,393.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,416.24 : 217,228.05 = 85,794.72 : x
  2. Step 2: Convert to fraction form
    157,416.24/217,228.05 = 85,794.72/x
  3. Step 3: Cross multiply
    157,416.24x = 217,228.05 × 85,794.72
  4. Step 4: Simplify right side
    157,416.24x = 18,637,019,725.90
  5. Step 5: Solve for x
    x = 18,637,019,725.90/157,416.24
  6. Step 6: Final answer
    x = 118,393.25

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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.