Home / 108,423.60-162,635.40-72,994.20

Finding the Fourth Proportional to 108,423.60, 162,635.40 and 72,994.20

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Solution

The fourth proportional to 108,423.60, 162,635.40 and 72,994.20 is: 109,491.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,423.60 : 162,635.40 = 72,994.20 : x
  2. Step 2: Convert to fraction form
    108,423.60/162,635.40 = 72,994.20/x
  3. Step 3: Cross multiply
    108,423.60x = 162,635.40 × 72,994.20
  4. Step 4: Simplify right side
    108,423.60x = 11,871,440,914.68
  5. Step 5: Solve for x
    x = 11,871,440,914.68/108,423.60
  6. Step 6: Final answer
    x = 109,491.30

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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.