Home / 105,836.34-158,671.29-72,455.23

Finding the Fourth Proportional to 105,836.34, 158,671.29 and 72,455.23

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Solution

The fourth proportional to 105,836.34, 158,671.29 and 72,455.23 is: 108,625.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,836.34 : 158,671.29 = 72,455.23 : x
  2. Step 2: Convert to fraction form
    105,836.34/158,671.29 = 72,455.23/x
  3. Step 3: Cross multiply
    105,836.34x = 158,671.29 × 72,455.23
  4. Step 4: Simplify right side
    105,836.34x = 11,496,564,811.35
  5. Step 5: Solve for x
    x = 11,496,564,811.35/105,836.34
  6. Step 6: Final answer
    x = 108,625.87

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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.