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Finding the Fourth Proportional to 108,999.70, 163,603.95 and 56,446.90

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Solution

The fourth proportional to 108,999.70, 163,603.95 and 56,446.90 is: 84,724.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,999.70 : 163,603.95 = 56,446.90 : x
  2. Step 2: Convert to fraction form
    108,999.70/163,603.95 = 56,446.90/x
  3. Step 3: Cross multiply
    108,999.70x = 163,603.95 × 56,446.90
  4. Step 4: Simplify right side
    108,999.70x = 9,234,935,805.26
  5. Step 5: Solve for x
    x = 9,234,935,805.26/108,999.70
  6. Step 6: Final answer
    x = 84,724.41

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1.5x scale

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.