Home / 103,491.27-142,794.09-74,852.91

Finding the Fourth Proportional to 103,491.27, 142,794.09 and 74,852.91

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Solution

The fourth proportional to 103,491.27, 142,794.09 and 74,852.91 is: 103,279.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,491.27 : 142,794.09 = 74,852.91 : x
  2. Step 2: Convert to fraction form
    103,491.27/142,794.09 = 74,852.91/x
  3. Step 3: Cross multiply
    103,491.27x = 142,794.09 × 74,852.91
  4. Step 4: Simplify right side
    103,491.27x = 10,688,553,167.30
  5. Step 5: Solve for x
    x = 10,688,553,167.30/103,491.27
  6. Step 6: Final answer
    x = 103,279.76

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1.5x scale

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.