Home / 127,439.36-175,915.08-84,982.40

Finding the Fourth Proportional to 127,439.36, 175,915.08 and 84,982.40

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Solution

The fourth proportional to 127,439.36, 175,915.08 and 84,982.40 is: 117,308.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,439.36 : 175,915.08 = 84,982.40 : x
  2. Step 2: Convert to fraction form
    127,439.36/175,915.08 = 84,982.40/x
  3. Step 3: Cross multiply
    127,439.36x = 175,915.08 × 84,982.40
  4. Step 4: Simplify right side
    127,439.36x = 14,949,685,694.59
  5. Step 5: Solve for x
    x = 14,949,685,694.59/127,439.36
  6. Step 6: Final answer
    x = 117,308.23

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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.