Home / 136,088.79-187,752.78-82,354.20

Finding the Fourth Proportional to 136,088.79, 187,752.78 and 82,354.20

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Solution

The fourth proportional to 136,088.79, 187,752.78 and 82,354.20 is: 113,618.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,088.79 : 187,752.78 = 82,354.20 : x
  2. Step 2: Convert to fraction form
    136,088.79/187,752.78 = 82,354.20/x
  3. Step 3: Cross multiply
    136,088.79x = 187,752.78 × 82,354.20
  4. Step 4: Simplify right side
    136,088.79x = 15,462,229,994.68
  5. Step 5: Solve for x
    x = 15,462,229,994.68/136,088.79
  6. Step 6: Final answer
    x = 113,618.69

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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.