Home / 172,601.10-258,901.65-54,308.70

Finding the Fourth Proportional to 172,601.10, 258,901.65 and 54,308.70

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Solution

The fourth proportional to 172,601.10, 258,901.65 and 54,308.70 is: 81,463.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,601.10 : 258,901.65 = 54,308.70 : x
  2. Step 2: Convert to fraction form
    172,601.10/258,901.65 = 54,308.70/x
  3. Step 3: Cross multiply
    172,601.10x = 258,901.65 × 54,308.70
  4. Step 4: Simplify right side
    172,601.10x = 14,060,612,039.36
  5. Step 5: Solve for x
    x = 14,060,612,039.36/172,601.10
  6. Step 6: Final answer
    x = 81,463.05

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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.