Home / 126,638.58-174,763.08-72,933.24

Finding the Fourth Proportional to 126,638.58, 174,763.08 and 72,933.24

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Solution

The fourth proportional to 126,638.58, 174,763.08 and 72,933.24 is: 100,648.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,638.58 : 174,763.08 = 72,933.24 : x
  2. Step 2: Convert to fraction form
    126,638.58/174,763.08 = 72,933.24/x
  3. Step 3: Cross multiply
    126,638.58x = 174,763.08 × 72,933.24
  4. Step 4: Simplify right side
    126,638.58x = 12,746,037,656.78
  5. Step 5: Solve for x
    x = 12,746,037,656.78/126,638.58
  6. Step 6: Final answer
    x = 100,648.93

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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.