Home / 125,143.32-172,699.74-68,550.96

Finding the Fourth Proportional to 125,143.32, 172,699.74 and 68,550.96

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Solution

The fourth proportional to 125,143.32, 172,699.74 and 68,550.96 is: 94,601.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,143.32 : 172,699.74 = 68,550.96 : x
  2. Step 2: Convert to fraction form
    125,143.32/172,699.74 = 68,550.96/x
  3. Step 3: Cross multiply
    125,143.32x = 172,699.74 × 68,550.96
  4. Step 4: Simplify right side
    125,143.32x = 11,838,732,968.75
  5. Step 5: Solve for x
    x = 11,838,732,968.75/125,143.32
  6. Step 6: Final answer
    x = 94,601.40

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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.