Home / 157,417.09-217,240.14-85,801.75

Finding the Fourth Proportional to 157,417.09, 217,240.14 and 85,801.75

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Solution

The fourth proportional to 157,417.09, 217,240.14 and 85,801.75 is: 118,408.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,417.09 : 217,240.14 = 85,801.75 : x
  2. Step 2: Convert to fraction form
    157,417.09/217,240.14 = 85,801.75/x
  3. Step 3: Cross multiply
    157,417.09x = 217,240.14 × 85,801.75
  4. Step 4: Simplify right side
    157,417.09x = 18,639,584,182.25
  5. Step 5: Solve for x
    x = 18,639,584,182.25/157,417.09
  6. Step 6: Final answer
    x = 118,408.90

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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.