Home / 210,172.46-315,337.56-125,992.61

Finding the Fourth Proportional to 210,172.46, 315,337.56 and 125,992.61

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Solution

The fourth proportional to 210,172.46, 315,337.56 and 125,992.61 is: 189,036.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,172.46 : 315,337.56 = 125,992.61 : x
  2. Step 2: Convert to fraction form
    210,172.46/315,337.56 = 125,992.61/x
  3. Step 3: Cross multiply
    210,172.46x = 315,337.56 × 125,992.61
  4. Step 4: Simplify right side
    210,172.46x = 39,730,200,638.74
  5. Step 5: Solve for x
    x = 39,730,200,638.74/210,172.46
  6. Step 6: Final answer
    x = 189,036.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.