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Finding the Fourth Proportional to 108,009.80, 162,014.70 and 97,512.20

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Solution

The fourth proportional to 108,009.80, 162,014.70 and 97,512.20 is: 146,268.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,009.80 : 162,014.70 = 97,512.20 : x
  2. Step 2: Convert to fraction form
    108,009.80/162,014.70 = 97,512.20/x
  3. Step 3: Cross multiply
    108,009.80x = 162,014.70 × 97,512.20
  4. Step 4: Simplify right side
    108,009.80x = 15,798,409,829.34
  5. Step 5: Solve for x
    x = 15,798,409,829.34/108,009.80
  6. Step 6: Final answer
    x = 146,268.30

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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.