Home / 124,722.16-172,108.48-68,133.52

Finding the Fourth Proportional to 124,722.16, 172,108.48 and 68,133.52

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Solution

The fourth proportional to 124,722.16, 172,108.48 and 68,133.52 is: 94,019.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,722.16 : 172,108.48 = 68,133.52 : x
  2. Step 2: Convert to fraction form
    124,722.16/172,108.48 = 68,133.52/x
  3. Step 3: Cross multiply
    124,722.16x = 172,108.48 × 68,133.52
  4. Step 4: Simplify right side
    124,722.16x = 11,726,356,564.25
  5. Step 5: Solve for x
    x = 11,726,356,564.25/124,722.16
  6. Step 6: Final answer
    x = 94,019.83

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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.