Home / 108,905.80-163,455.90-94,131.40

Finding the Fourth Proportional to 108,905.80, 163,455.90 and 94,131.40

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Solution

The fourth proportional to 108,905.80, 163,455.90 and 94,131.40 is: 141,281.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,905.80 : 163,455.90 = 94,131.40 : x
  2. Step 2: Convert to fraction form
    108,905.80/163,455.90 = 94,131.40/x
  3. Step 3: Cross multiply
    108,905.80x = 163,455.90 × 94,131.40
  4. Step 4: Simplify right side
    108,905.80x = 15,386,332,705.26
  5. Step 5: Solve for x
    x = 15,386,332,705.26/108,905.80
  6. Step 6: Final answer
    x = 141,281.11

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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.