Home / 136,651.12-188,579.58-76,225.72

Finding the Fourth Proportional to 136,651.12, 188,579.58 and 76,225.72

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Solution

The fourth proportional to 136,651.12, 188,579.58 and 76,225.72 is: 105,192.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,651.12 : 188,579.58 = 76,225.72 : x
  2. Step 2: Convert to fraction form
    136,651.12/188,579.58 = 76,225.72/x
  3. Step 3: Cross multiply
    136,651.12x = 188,579.58 × 76,225.72
  4. Step 4: Simplify right side
    136,651.12x = 14,374,614,262.80
  5. Step 5: Solve for x
    x = 14,374,614,262.80/136,651.12
  6. Step 6: Final answer
    x = 105,192.07

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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.