Home / 156,426.71-234,709.84-72,141.63

Finding the Fourth Proportional to 156,426.71, 234,709.84 and 72,141.63

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Solution

The fourth proportional to 156,426.71, 234,709.84 and 72,141.63 is: 108,244.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,426.71 : 234,709.84 = 72,141.63 : x
  2. Step 2: Convert to fraction form
    156,426.71/234,709.84 = 72,141.63/x
  3. Step 3: Cross multiply
    156,426.71x = 234,709.84 × 72,141.63
  4. Step 4: Simplify right side
    156,426.71x = 16,932,350,434.64
  5. Step 5: Solve for x
    x = 16,932,350,434.64/156,426.71
  6. Step 6: Final answer
    x = 108,244.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.