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Finding the Fourth Proportional to 108,560.76, 162,600.54 and 83,415.72

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Solution

The fourth proportional to 108,560.76, 162,600.54 and 83,415.72 is: 124,938.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,560.76 : 162,600.54 = 83,415.72 : x
  2. Step 2: Convert to fraction form
    108,560.76/162,600.54 = 83,415.72/x
  3. Step 3: Cross multiply
    108,560.76x = 162,600.54 × 83,415.72
  4. Step 4: Simplify right side
    108,560.76x = 13,563,441,116.49
  5. Step 5: Solve for x
    x = 13,563,441,116.49/108,560.76
  6. Step 6: Final answer
    x = 124,938.71

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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.