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Finding the Fourth Proportional to 108,625.60, 162,938.40 and 99,294.40

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Solution

The fourth proportional to 108,625.60, 162,938.40 and 99,294.40 is: 148,941.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,625.60 : 162,938.40 = 99,294.40 : x
  2. Step 2: Convert to fraction form
    108,625.60/162,938.40 = 99,294.40/x
  3. Step 3: Cross multiply
    108,625.60x = 162,938.40 × 99,294.40
  4. Step 4: Simplify right side
    108,625.60x = 16,178,870,664.96
  5. Step 5: Solve for x
    x = 16,178,870,664.96/108,625.60
  6. Step 6: Final answer
    x = 148,941.60

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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.