Home / 172,416.04-258,633.78-54,084.76

Finding the Fourth Proportional to 172,416.04, 258,633.78 and 54,084.76

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Solution

The fourth proportional to 172,416.04, 258,633.78 and 54,084.76 is: 81,130.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,416.04 : 258,633.78 = 54,084.76 : x
  2. Step 2: Convert to fraction form
    172,416.04/258,633.78 = 54,084.76/x
  3. Step 3: Cross multiply
    172,416.04x = 258,633.78 × 54,084.76
  4. Step 4: Simplify right side
    172,416.04x = 13,988,145,919.19
  5. Step 5: Solve for x
    x = 13,988,145,919.19/172,416.04
  6. Step 6: Final answer
    x = 81,130.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.