Home / 99,403.22-149,048.34-67,851.47

Finding the Fourth Proportional to 99,403.22, 149,048.34 and 67,851.47

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Solution

The fourth proportional to 99,403.22, 149,048.34 and 67,851.47 is: 101,738.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,403.22 : 149,048.34 = 67,851.47 : x
  2. Step 2: Convert to fraction form
    99,403.22/149,048.34 = 67,851.47/x
  3. Step 3: Cross multiply
    99,403.22x = 149,048.34 × 67,851.47
  4. Step 4: Simplify right side
    99,403.22x = 10,113,149,038.19
  5. Step 5: Solve for x
    x = 10,113,149,038.19/99,403.22
  6. Step 6: Final answer
    x = 101,738.65

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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.