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Finding the Fourth Proportional to 172,473.73, 258,710.69 and 77,593.12

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Solution

The fourth proportional to 172,473.73, 258,710.69 and 77,593.12 is: 116,389.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,473.73 : 258,710.69 = 77,593.12 : x
  2. Step 2: Convert to fraction form
    172,473.73/258,710.69 = 77,593.12/x
  3. Step 3: Cross multiply
    172,473.73x = 258,710.69 × 77,593.12
  4. Step 4: Simplify right side
    172,473.73x = 20,074,169,226.49
  5. Step 5: Solve for x
    x = 20,074,169,226.49/172,473.73
  6. Step 6: Final answer
    x = 116,389.72

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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.