Home / 156,426.21-234,709.09-72,141.13

Finding the Fourth Proportional to 156,426.21, 234,709.09 and 72,141.13

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Solution

The fourth proportional to 156,426.21, 234,709.09 and 72,141.13 is: 108,243.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,426.21 : 234,709.09 = 72,141.13 : x
  2. Step 2: Convert to fraction form
    156,426.21/234,709.09 = 72,141.13/x
  3. Step 3: Cross multiply
    156,426.21x = 234,709.09 × 72,141.13
  4. Step 4: Simplify right side
    156,426.21x = 16,932,178,206.75
  5. Step 5: Solve for x
    x = 16,932,178,206.75/156,426.21
  6. Step 6: Final answer
    x = 108,243.87

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1.5x scale

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.