Home / 440,639.92-660,984.96-125,072

Finding the Fourth Proportional to 440,639.92, 660,984.96 and 125,072

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Solution

The fourth proportional to 440,639.92, 660,984.96 and 125,072 is: 187,615.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,639.92 : 660,984.96 = 125,072 : x
  2. Step 2: Convert to fraction form
    440,639.92/660,984.96 = 125,072/x
  3. Step 3: Cross multiply
    440,639.92x = 660,984.96 × 125,072
  4. Step 4: Simplify right side
    440,639.92x = 82,670,710,917.12
  5. Step 5: Solve for x
    x = 82,670,710,917.12/440,639.92
  6. Step 6: Final answer
    x = 187,615.12

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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.