Home / 136,641.06-188,565.68-76,215.62

Finding the Fourth Proportional to 136,641.06, 188,565.68 and 76,215.62

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Solution

The fourth proportional to 136,641.06, 188,565.68 and 76,215.62 is: 105,178.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,641.06 : 188,565.68 = 76,215.62 : x
  2. Step 2: Convert to fraction form
    136,641.06/188,565.68 = 76,215.62/x
  3. Step 3: Cross multiply
    136,641.06x = 188,565.68 × 76,215.62
  4. Step 4: Simplify right side
    136,641.06x = 14,371,650,873.87
  5. Step 5: Solve for x
    x = 14,371,650,873.87/136,641.06
  6. Step 6: Final answer
    x = 105,178.13

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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.