Home / 156,717.09-216,271.58-85,098.33

Finding the Fourth Proportional to 156,717.09, 216,271.58 and 85,098.33

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Solution

The fourth proportional to 156,717.09, 216,271.58 and 85,098.33 is: 117,436.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,717.09 : 216,271.58 = 85,098.33 : x
  2. Step 2: Convert to fraction form
    156,717.09/216,271.58 = 85,098.33/x
  3. Step 3: Cross multiply
    156,717.09x = 216,271.58 × 85,098.33
  4. Step 4: Simplify right side
    156,717.09x = 18,404,349,858.97
  5. Step 5: Solve for x
    x = 18,404,349,858.97/156,717.09
  6. Step 6: Final answer
    x = 117,436.78

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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.