Home / 106,530.46-147,012.50-58,785.21

Finding the Fourth Proportional to 106,530.46, 147,012.50 and 58,785.21

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Solution

The fourth proportional to 106,530.46, 147,012.50 and 58,785.21 is: 81,123.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,530.46 : 147,012.50 = 58,785.21 : x
  2. Step 2: Convert to fraction form
    106,530.46/147,012.50 = 58,785.21/x
  3. Step 3: Cross multiply
    106,530.46x = 147,012.50 × 58,785.21
  4. Step 4: Simplify right side
    106,530.46x = 8,642,160,832.09
  5. Step 5: Solve for x
    x = 8,642,160,832.09/106,530.46
  6. Step 6: Final answer
    x = 81,123.85

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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.