Home / 106,686.40-147,215.32-58,927.80

Finding the Fourth Proportional to 106,686.40, 147,215.32 and 58,927.80

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Solution

The fourth proportional to 106,686.40, 147,215.32 and 58,927.80 is: 81,313.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,686.40 : 147,215.32 = 58,927.80 : x
  2. Step 2: Convert to fraction form
    106,686.40/147,215.32 = 58,927.80/x
  3. Step 3: Cross multiply
    106,686.40x = 147,215.32 × 58,927.80
  4. Step 4: Simplify right side
    106,686.40x = 8,675,074,933.90
  5. Step 5: Solve for x
    x = 8,675,074,933.90/106,686.40
  6. Step 6: Final answer
    x = 81,313.78

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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.