Home / 136,235.72-188,008.98-76,633.80

Finding the Fourth Proportional to 136,235.72, 188,008.98 and 76,633.80

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Solution

The fourth proportional to 136,235.72, 188,008.98 and 76,633.80 is: 105,756.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,235.72 : 188,008.98 = 76,633.80 : x
  2. Step 2: Convert to fraction form
    136,235.72/188,008.98 = 76,633.80/x
  3. Step 3: Cross multiply
    136,235.72x = 188,008.98 × 76,633.80
  4. Step 4: Simplify right side
    136,235.72x = 14,407,842,571.52
  5. Step 5: Solve for x
    x = 14,407,842,571.52/136,235.72
  6. Step 6: Final answer
    x = 105,756.72

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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.