Home / 157,417.03-217,240.11-85,801.69

Finding the Fourth Proportional to 157,417.03, 217,240.11 and 85,801.69

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Solution

The fourth proportional to 157,417.03, 217,240.11 and 85,801.69 is: 118,408.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,417.03 : 217,240.11 = 85,801.69 : x
  2. Step 2: Convert to fraction form
    157,417.03/217,240.11 = 85,801.69/x
  3. Step 3: Cross multiply
    157,417.03x = 217,240.11 × 85,801.69
  4. Step 4: Simplify right side
    157,417.03x = 18,639,568,573.79
  5. Step 5: Solve for x
    x = 18,639,568,573.79/157,417.03
  6. Step 6: Final answer
    x = 118,408.84

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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.