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Finding the Fourth Proportional to 108,640.30, 152,200.10 and 108,640.30

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Solution

The fourth proportional to 108,640.30, 152,200.10 and 108,640.30 is: 152,200.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,640.30 : 152,200.10 = 108,640.30 : x
  2. Step 2: Convert to fraction form
    108,640.30/152,200.10 = 108,640.30/x
  3. Step 3: Cross multiply
    108,640.30x = 152,200.10 × 108,640.30
  4. Step 4: Simplify right side
    108,640.30x = 16,535,064,524.03
  5. Step 5: Solve for x
    x = 16,535,064,524.03/108,640.30
  6. Step 6: Final answer
    x = 152,200.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.