Home / 148,910.16-205,294.80-101,080.47

Finding the Fourth Proportional to 148,910.16, 205,294.80 and 101,080.47

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Solution

The fourth proportional to 148,910.16, 205,294.80 and 101,080.47 is: 139,354.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,910.16 : 205,294.80 = 101,080.47 : x
  2. Step 2: Convert to fraction form
    148,910.16/205,294.80 = 101,080.47/x
  3. Step 3: Cross multiply
    148,910.16x = 205,294.80 × 101,080.47
  4. Step 4: Simplify right side
    148,910.16x = 20,751,296,021.46
  5. Step 5: Solve for x
    x = 20,751,296,021.46/148,910.16
  6. Step 6: Final answer
    x = 139,354.46

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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.