Home / 127,890.28-176,491.68-70,530.43

Finding the Fourth Proportional to 127,890.28, 176,491.68 and 70,530.43

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Solution

The fourth proportional to 127,890.28, 176,491.68 and 70,530.43 is: 97,333.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,890.28 : 176,491.68 = 70,530.43 : x
  2. Step 2: Convert to fraction form
    127,890.28/176,491.68 = 70,530.43/x
  3. Step 3: Cross multiply
    127,890.28x = 176,491.68 × 70,530.43
  4. Step 4: Simplify right side
    127,890.28x = 12,448,033,640.59
  5. Step 5: Solve for x
    x = 12,448,033,640.59/127,890.28
  6. Step 6: Final answer
    x = 97,333.70

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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.