Home / 156,893.10-216,514.67-85,273.10

Finding the Fourth Proportional to 156,893.10, 216,514.67 and 85,273.10

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Solution

The fourth proportional to 156,893.10, 216,514.67 and 85,273.10 is: 117,678.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,893.10 : 216,514.67 = 85,273.10 : x
  2. Step 2: Convert to fraction form
    156,893.10/216,514.67 = 85,273.10/x
  3. Step 3: Cross multiply
    156,893.10x = 216,514.67 × 85,273.10
  4. Step 4: Simplify right side
    156,893.10x = 18,462,878,106.92
  5. Step 5: Solve for x
    x = 18,462,878,106.92/156,893.10
  6. Step 6: Final answer
    x = 117,678.07

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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.