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Finding the Fourth Proportional to 163,114.80, 244,283.40 and 100,129.20

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Solution

The fourth proportional to 163,114.80, 244,283.40 and 100,129.20 is: 149,955.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,114.80 : 244,283.40 = 100,129.20 : x
  2. Step 2: Convert to fraction form
    163,114.80/244,283.40 = 100,129.20/x
  3. Step 3: Cross multiply
    163,114.80x = 244,283.40 × 100,129.20
  4. Step 4: Simplify right side
    163,114.80x = 24,459,901,415.28
  5. Step 5: Solve for x
    x = 24,459,901,415.28/163,114.80
  6. Step 6: Final answer
    x = 149,955.13

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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.