Home / 122,437,148.04-168,975,198.90-91,443,508.92

Finding the Fourth Proportional to 122,437,148.04, 168,975,198.90 and 91,443,508.92

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Solution

The fourth proportional to 122,437,148.04, 168,975,198.90 and 91,443,508.92 is: 126,200,955.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,437,148.04 : 168,975,198.90 = 91,443,508.92 : x
  2. Step 2: Convert to fraction form
    122,437,148.04/168,975,198.90 = 91,443,508.92/x
  3. Step 3: Cross multiply
    122,437,148.04x = 168,975,198.90 × 91,443,508.92
  4. Step 4: Simplify right side
    122,437,148.04x = 15,451,685,107,870,926
  5. Step 5: Solve for x
    x = 15,451,685,107,870,926/122,437,148.04
  6. Step 6: Final answer
    x = 126,200,955.80

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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.