Home / 99,530.65-149,148.30-73,106.22

Finding the Fourth Proportional to 99,530.65, 149,148.30 and 73,106.22

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Solution

The fourth proportional to 99,530.65, 149,148.30 and 73,106.22 is: 109,550.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,530.65 : 149,148.30 = 73,106.22 : x
  2. Step 2: Convert to fraction form
    99,530.65/149,148.30 = 73,106.22/x
  3. Step 3: Cross multiply
    99,530.65x = 149,148.30 × 73,106.22
  4. Step 4: Simplify right side
    99,530.65x = 10,903,668,439.77
  5. Step 5: Solve for x
    x = 10,903,668,439.77/99,530.65
  6. Step 6: Final answer
    x = 109,550.86

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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.