Home / 101,890.04-152,636.22-66,723.08

Finding the Fourth Proportional to 101,890.04, 152,636.22 and 66,723.08

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Solution

The fourth proportional to 101,890.04, 152,636.22 and 66,723.08 is: 99,954.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,890.04 : 152,636.22 = 66,723.08 : x
  2. Step 2: Convert to fraction form
    101,890.04/152,636.22 = 66,723.08/x
  3. Step 3: Cross multiply
    101,890.04x = 152,636.22 × 66,723.08
  4. Step 4: Simplify right side
    101,890.04x = 10,184,358,717.96
  5. Step 5: Solve for x
    x = 10,184,358,717.96/101,890.04
  6. Step 6: Final answer
    x = 99,954.41

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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.