Home / 156,134.64-215,465.72-84,515.24

Finding the Fourth Proportional to 156,134.64, 215,465.72 and 84,515.24

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Solution

The fourth proportional to 156,134.64, 215,465.72 and 84,515.24 is: 116,630.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,134.64 : 215,465.72 = 84,515.24 : x
  2. Step 2: Convert to fraction form
    156,134.64/215,465.72 = 84,515.24/x
  3. Step 3: Cross multiply
    156,134.64x = 215,465.72 × 84,515.24
  4. Step 4: Simplify right side
    156,134.64x = 18,210,137,037.57
  5. Step 5: Solve for x
    x = 18,210,137,037.57/156,134.64
  6. Step 6: Final answer
    x = 116,630.99

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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.