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Finding the Fourth Proportional to 127,814.60, 191,794.80 and 48,985.40

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Solution

The fourth proportional to 127,814.60, 191,794.80 and 48,985.40 is: 73,506.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,814.60 : 191,794.80 = 48,985.40 : x
  2. Step 2: Convert to fraction form
    127,814.60/191,794.80 = 48,985.40/x
  3. Step 3: Cross multiply
    127,814.60x = 191,794.80 × 48,985.40
  4. Step 4: Simplify right side
    127,814.60x = 9,395,144,995.92
  5. Step 5: Solve for x
    x = 9,395,144,995.92/127,814.60
  6. Step 6: Final answer
    x = 73,506.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.