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Finding the Fourth Proportional to 127,281.60, 191,126.40 and 101,203.20

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Solution

The fourth proportional to 127,281.60, 191,126.40 and 101,203.20 is: 151,967.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,281.60 : 191,126.40 = 101,203.20 : x
  2. Step 2: Convert to fraction form
    127,281.60/191,126.40 = 101,203.20/x
  3. Step 3: Cross multiply
    127,281.60x = 191,126.40 × 101,203.20
  4. Step 4: Simplify right side
    127,281.60x = 19,342,603,284.48
  5. Step 5: Solve for x
    x = 19,342,603,284.48/127,281.60
  6. Step 6: Final answer
    x = 151,967.00

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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.