Home / 99,720.34-149,496.62-46,385.22

Finding the Fourth Proportional to 99,720.34, 149,496.62 and 46,385.22

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Solution

The fourth proportional to 99,720.34, 149,496.62 and 46,385.22 is: 69,538.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,720.34 : 149,496.62 = 46,385.22 : x
  2. Step 2: Convert to fraction form
    99,720.34/149,496.62 = 46,385.22/x
  3. Step 3: Cross multiply
    99,720.34x = 149,496.62 × 46,385.22
  4. Step 4: Simplify right side
    99,720.34x = 6,934,433,607.96
  5. Step 5: Solve for x
    x = 6,934,433,607.96/99,720.34
  6. Step 6: Final answer
    x = 69,538.81

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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.