Home / 136,651.23-188,578.98-76,225.77

Finding the Fourth Proportional to 136,651.23, 188,578.98 and 76,225.77

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Solution

The fourth proportional to 136,651.23, 188,578.98 and 76,225.77 is: 105,191.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,651.23 : 188,578.98 = 76,225.77 : x
  2. Step 2: Convert to fraction form
    136,651.23/188,578.98 = 76,225.77/x
  3. Step 3: Cross multiply
    136,651.23x = 188,578.98 × 76,225.77
  4. Step 4: Simplify right side
    136,651.23x = 14,374,577,956.31
  5. Step 5: Solve for x
    x = 14,374,577,956.31/136,651.23
  6. Step 6: Final answer
    x = 105,191.72

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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.