Home / 124,737.30-172,088.60-76,907.61

Finding the Fourth Proportional to 124,737.30, 172,088.60 and 76,907.61

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Solution

The fourth proportional to 124,737.30, 172,088.60 and 76,907.61 is: 106,102.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,737.30 : 172,088.60 = 76,907.61 : x
  2. Step 2: Convert to fraction form
    124,737.30/172,088.60 = 76,907.61/x
  3. Step 3: Cross multiply
    124,737.30x = 172,088.60 × 76,907.61
  4. Step 4: Simplify right side
    124,737.30x = 13,234,922,266.07
  5. Step 5: Solve for x
    x = 13,234,922,266.07/124,737.30
  6. Step 6: Final answer
    x = 106,102.37

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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.