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Finding the Fourth Proportional to 106,018.99, 146,327.48 and 62,990.20

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Solution

The fourth proportional to 106,018.99, 146,327.48 and 62,990.20 is: 86,939.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,018.99 : 146,327.48 = 62,990.20 : x
  2. Step 2: Convert to fraction form
    106,018.99/146,327.48 = 62,990.20/x
  3. Step 3: Cross multiply
    106,018.99x = 146,327.48 × 62,990.20
  4. Step 4: Simplify right side
    106,018.99x = 9,217,197,230.70
  5. Step 5: Solve for x
    x = 9,217,197,230.70/106,018.99
  6. Step 6: Final answer
    x = 86,939.12

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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.