Home / 125,902.08-173,739.78-72,149.76

Finding the Fourth Proportional to 125,902.08, 173,739.78 and 72,149.76

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Solution

The fourth proportional to 125,902.08, 173,739.78 and 72,149.76 is: 99,563.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,902.08 : 173,739.78 = 72,149.76 : x
  2. Step 2: Convert to fraction form
    125,902.08/173,739.78 = 72,149.76/x
  3. Step 3: Cross multiply
    125,902.08x = 173,739.78 × 72,149.76
  4. Step 4: Simplify right side
    125,902.08x = 12,535,283,429.45
  5. Step 5: Solve for x
    x = 12,535,283,429.45/125,902.08
  6. Step 6: Final answer
    x = 99,563.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.