Home / 109,337.20-164,070.60-72,004.30

Finding the Fourth Proportional to 109,337.20, 164,070.60 and 72,004.30

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Solution

The fourth proportional to 109,337.20, 164,070.60 and 72,004.30 is: 108,049.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,337.20 : 164,070.60 = 72,004.30 : x
  2. Step 2: Convert to fraction form
    109,337.20/164,070.60 = 72,004.30/x
  3. Step 3: Cross multiply
    109,337.20x = 164,070.60 × 72,004.30
  4. Step 4: Simplify right side
    109,337.20x = 11,813,788,703.58
  5. Step 5: Solve for x
    x = 11,813,788,703.58/109,337.20
  6. Step 6: Final answer
    x = 108,049.12

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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.