Home / 124,762.23-172,172.32-68,173.61

Finding the Fourth Proportional to 124,762.23, 172,172.32 and 68,173.61

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Solution

The fourth proportional to 124,762.23, 172,172.32 and 68,173.61 is: 94,079.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,762.23 : 172,172.32 = 68,173.61 : x
  2. Step 2: Convert to fraction form
    124,762.23/172,172.32 = 68,173.61/x
  3. Step 3: Cross multiply
    124,762.23x = 172,172.32 × 68,173.61
  4. Step 4: Simplify right side
    124,762.23x = 11,737,607,565.18
  5. Step 5: Solve for x
    x = 11,737,607,565.18/124,762.23
  6. Step 6: Final answer
    x = 94,079.82

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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.