Home / 127,229.64-175,582.38-70,641

Finding the Fourth Proportional to 127,229.64, 175,582.38 and 70,641

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Solution

The fourth proportional to 127,229.64, 175,582.38 and 70,641 is: 97,487.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,229.64 : 175,582.38 = 70,641 : x
  2. Step 2: Convert to fraction form
    127,229.64/175,582.38 = 70,641/x
  3. Step 3: Cross multiply
    127,229.64x = 175,582.38 × 70,641
  4. Step 4: Simplify right side
    127,229.64x = 12,403,314,905.58
  5. Step 5: Solve for x
    x = 12,403,314,905.58/127,229.64
  6. Step 6: Final answer
    x = 97,487.62

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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.