Home / 156,206.79-215,566.39-84,586.81

Finding the Fourth Proportional to 156,206.79, 215,566.39 and 84,586.81

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Solution

The fourth proportional to 156,206.79, 215,566.39 and 84,586.81 is: 116,730.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,206.79 : 215,566.39 = 84,586.81 : x
  2. Step 2: Convert to fraction form
    156,206.79/215,566.39 = 84,586.81/x
  3. Step 3: Cross multiply
    156,206.79x = 215,566.39 × 84,586.81
  4. Step 4: Simplify right side
    156,206.79x = 18,234,073,273.32
  5. Step 5: Solve for x
    x = 18,234,073,273.32/156,206.79
  6. Step 6: Final answer
    x = 116,730.35

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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.