Home / 102,030.99-140,739.24-70,144.53

Finding the Fourth Proportional to 102,030.99, 140,739.24 and 70,144.53

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Solution

The fourth proportional to 102,030.99, 140,739.24 and 70,144.53 is: 96,755.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,030.99 : 140,739.24 = 70,144.53 : x
  2. Step 2: Convert to fraction form
    102,030.99/140,739.24 = 70,144.53/x
  3. Step 3: Cross multiply
    102,030.99x = 140,739.24 × 70,144.53
  4. Step 4: Simplify right side
    102,030.99x = 9,872,087,842.36
  5. Step 5: Solve for x
    x = 9,872,087,842.36/102,030.99
  6. Step 6: Final answer
    x = 96,755.78

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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.