Home / 156,957.85-216,610.68-85,336.35

Finding the Fourth Proportional to 156,957.85, 216,610.68 and 85,336.35

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Solution

The fourth proportional to 156,957.85, 216,610.68 and 85,336.35 is: 117,768.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,957.85 : 216,610.68 = 85,336.35 : x
  2. Step 2: Convert to fraction form
    156,957.85/216,610.68 = 85,336.35/x
  3. Step 3: Cross multiply
    156,957.85x = 216,610.68 × 85,336.35
  4. Step 4: Simplify right side
    156,957.85x = 18,484,764,802.22
  5. Step 5: Solve for x
    x = 18,484,764,802.22/156,957.85
  6. Step 6: Final answer
    x = 117,768.97

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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.