Home / 108,890.12-163,305.72-29,985.59

Finding the Fourth Proportional to 108,890.12, 163,305.72 and 29,985.59

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Solution

The fourth proportional to 108,890.12, 163,305.72 and 29,985.59 is: 44,970.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,890.12 : 163,305.72 = 29,985.59 : x
  2. Step 2: Convert to fraction form
    108,890.12/163,305.72 = 29,985.59/x
  3. Step 3: Cross multiply
    108,890.12x = 163,305.72 × 29,985.59
  4. Step 4: Simplify right side
    108,890.12x = 4,896,818,772.84
  5. Step 5: Solve for x
    x = 4,896,818,772.84/108,890.12
  6. Step 6: Final answer
    x = 44,970.28

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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.