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Finding the Fourth Proportional to 108,847.40, 163,076.70 and 89,018.60

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Solution

The fourth proportional to 108,847.40, 163,076.70 and 89,018.60 is: 133,368.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,847.40 : 163,076.70 = 89,018.60 : x
  2. Step 2: Convert to fraction form
    108,847.40/163,076.70 = 89,018.60/x
  3. Step 3: Cross multiply
    108,847.40x = 163,076.70 × 89,018.60
  4. Step 4: Simplify right side
    108,847.40x = 14,516,859,526.62
  5. Step 5: Solve for x
    x = 14,516,859,526.62/108,847.40
  6. Step 6: Final answer
    x = 133,368.91

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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.