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Finding the Fourth Proportional to 172,088.94, 258,169.86 and 53,769.20

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Solution

The fourth proportional to 172,088.94, 258,169.86 and 53,769.20 is: 80,665.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,088.94 : 258,169.86 = 53,769.20 : x
  2. Step 2: Convert to fraction form
    172,088.94/258,169.86 = 53,769.20/x
  3. Step 3: Cross multiply
    172,088.94x = 258,169.86 × 53,769.20
  4. Step 4: Simplify right side
    172,088.94x = 13,881,585,545.46
  5. Step 5: Solve for x
    x = 13,881,585,545.46/172,088.94
  6. Step 6: Final answer
    x = 80,665.18

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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.