Home / 156,936.38-235,477.56-72,649.40

Finding the Fourth Proportional to 156,936.38, 235,477.56 and 72,649.40

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Solution

The fourth proportional to 156,936.38, 235,477.56 and 72,649.40 is: 109,007.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,936.38 : 235,477.56 = 72,649.40 : x
  2. Step 2: Convert to fraction form
    156,936.38/235,477.56 = 72,649.40/x
  3. Step 3: Cross multiply
    156,936.38x = 235,477.56 × 72,649.40
  4. Step 4: Simplify right side
    156,936.38x = 17,107,303,447.46
  5. Step 5: Solve for x
    x = 17,107,303,447.46/156,936.38
  6. Step 6: Final answer
    x = 109,007.89

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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.