Home / 525,521.82-788,282.72-126,162.60

Finding the Fourth Proportional to 525,521.82, 788,282.72 and 126,162.60

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Solution

The fourth proportional to 525,521.82, 788,282.72 and 126,162.60 is: 189,243.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,521.82 : 788,282.72 = 126,162.60 : x
  2. Step 2: Convert to fraction form
    525,521.82/788,282.72 = 126,162.60/x
  3. Step 3: Cross multiply
    525,521.82x = 788,282.72 × 126,162.60
  4. Step 4: Simplify right side
    525,521.82x = 99,451,794,376.51
  5. Step 5: Solve for x
    x = 99,451,794,376.51/525,521.82
  6. Step 6: Final answer
    x = 189,243.89

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Similar ratio
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1.5x scale

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.