Home / 156,325.68-215,729.63-84,705.69

Finding the Fourth Proportional to 156,325.68, 215,729.63 and 84,705.69

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Solution

The fourth proportional to 156,325.68, 215,729.63 and 84,705.69 is: 116,893.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,325.68 : 215,729.63 = 84,705.69 : x
  2. Step 2: Convert to fraction form
    156,325.68/215,729.63 = 84,705.69/x
  3. Step 3: Cross multiply
    156,325.68x = 215,729.63 × 84,705.69
  4. Step 4: Simplify right side
    156,325.68x = 18,273,527,162.59
  5. Step 5: Solve for x
    x = 18,273,527,162.59/156,325.68
  6. Step 6: Final answer
    x = 116,893.96

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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.