Home / 112,668.59-155,532.90-74,451.98

Finding the Fourth Proportional to 112,668.59, 155,532.90 and 74,451.98

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Solution

The fourth proportional to 112,668.59, 155,532.90 and 74,451.98 is: 102,776.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,668.59 : 155,532.90 = 74,451.98 : x
  2. Step 2: Convert to fraction form
    112,668.59/155,532.90 = 74,451.98/x
  3. Step 3: Cross multiply
    112,668.59x = 155,532.90 × 74,451.98
  4. Step 4: Simplify right side
    112,668.59x = 11,579,732,360.14
  5. Step 5: Solve for x
    x = 11,579,732,360.14/112,668.59
  6. Step 6: Final answer
    x = 102,776.94

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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.