Home / 156,022.88-215,311.35-84,402.74

Finding the Fourth Proportional to 156,022.88, 215,311.35 and 84,402.74

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Solution

The fourth proportional to 156,022.88, 215,311.35 and 84,402.74 is: 116,475.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,022.88 : 215,311.35 = 84,402.74 : x
  2. Step 2: Convert to fraction form
    156,022.88/215,311.35 = 84,402.74/x
  3. Step 3: Cross multiply
    156,022.88x = 215,311.35 × 84,402.74
  4. Step 4: Simplify right side
    156,022.88x = 18,172,868,273.12
  5. Step 5: Solve for x
    x = 18,172,868,273.12/156,022.88
  6. Step 6: Final answer
    x = 116,475.67

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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.