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Finding the Fourth Proportional to 127,403.81, 175,819.50 and 70,045.55

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Solution

The fourth proportional to 127,403.81, 175,819.50 and 70,045.55 is: 96,664.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,403.81 : 175,819.50 = 70,045.55 : x
  2. Step 2: Convert to fraction form
    127,403.81/175,819.50 = 70,045.55/x
  3. Step 3: Cross multiply
    127,403.81x = 175,819.50 × 70,045.55
  4. Step 4: Simplify right side
    127,403.81x = 12,315,373,578.23
  5. Step 5: Solve for x
    x = 12,315,373,578.23/127,403.81
  6. Step 6: Final answer
    x = 96,664.09

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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.