Home / 156,774.41-235,126.14-72,488.64

Finding the Fourth Proportional to 156,774.41, 235,126.14 and 72,488.64

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Solution

The fourth proportional to 156,774.41, 235,126.14 and 72,488.64 is: 108,716.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,774.41 : 235,126.14 = 72,488.64 : x
  2. Step 2: Convert to fraction form
    156,774.41/235,126.14 = 72,488.64/x
  3. Step 3: Cross multiply
    156,774.41x = 235,126.14 × 72,488.64
  4. Step 4: Simplify right side
    156,774.41x = 17,043,974,726.94
  5. Step 5: Solve for x
    x = 17,043,974,726.94/156,774.41
  6. Step 6: Final answer
    x = 108,716.56

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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.