Home / 156,975.34-216,628.68-85,355.80

Finding the Fourth Proportional to 156,975.34, 216,628.68 and 85,355.80

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Solution

The fourth proportional to 156,975.34, 216,628.68 and 85,355.80 is: 117,792.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,975.34 : 216,628.68 = 85,355.80 : x
  2. Step 2: Convert to fraction form
    156,975.34/216,628.68 = 85,355.80/x
  3. Step 3: Cross multiply
    156,975.34x = 216,628.68 × 85,355.80
  4. Step 4: Simplify right side
    156,975.34x = 18,490,514,284.34
  5. Step 5: Solve for x
    x = 18,490,514,284.34/156,975.34
  6. Step 6: Final answer
    x = 117,792.48

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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.