Home / 124,607.45-171,999.30-99,160.49

Finding the Fourth Proportional to 124,607.45, 171,999.30 and 99,160.49

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Solution

The fourth proportional to 124,607.45, 171,999.30 and 99,160.49 is: 136,874.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,607.45 : 171,999.30 = 99,160.49 : x
  2. Step 2: Convert to fraction form
    124,607.45/171,999.30 = 99,160.49/x
  3. Step 3: Cross multiply
    124,607.45x = 171,999.30 × 99,160.49
  4. Step 4: Simplify right side
    124,607.45x = 17,055,534,007.66
  5. Step 5: Solve for x
    x = 17,055,534,007.66/124,607.45
  6. Step 6: Final answer
    x = 136,874.12

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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.