Home / 127,639.62-176,146.86-70,284.87

Finding the Fourth Proportional to 127,639.62, 176,146.86 and 70,284.87

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Solution

The fourth proportional to 127,639.62, 176,146.86 and 70,284.87 is: 96,995.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,639.62 : 176,146.86 = 70,284.87 : x
  2. Step 2: Convert to fraction form
    127,639.62/176,146.86 = 70,284.87/x
  3. Step 3: Cross multiply
    127,639.62x = 176,146.86 × 70,284.87
  4. Step 4: Simplify right side
    127,639.62x = 12,380,459,156.01
  5. Step 5: Solve for x
    x = 12,380,459,156.01/127,639.62
  6. Step 6: Final answer
    x = 96,995.42

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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.