Home / 156,612.45-216,124.08-84,993.06

Finding the Fourth Proportional to 156,612.45, 216,124.08 and 84,993.06

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Solution

The fourth proportional to 156,612.45, 216,124.08 and 84,993.06 is: 117,289.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,612.45 : 216,124.08 = 84,993.06 : x
  2. Step 2: Convert to fraction form
    156,612.45/216,124.08 = 84,993.06/x
  3. Step 3: Cross multiply
    156,612.45x = 216,124.08 × 84,993.06
  4. Step 4: Simplify right side
    156,612.45x = 18,369,046,898.88
  5. Step 5: Solve for x
    x = 18,369,046,898.88/156,612.45
  6. Step 6: Final answer
    x = 117,289.83

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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.