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Finding the Fourth Proportional to 136,274.40, 204,411.60 and 89,035.20

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Solution

The fourth proportional to 136,274.40, 204,411.60 and 89,035.20 is: 133,552.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,274.40 : 204,411.60 = 89,035.20 : x
  2. Step 2: Convert to fraction form
    136,274.40/204,411.60 = 89,035.20/x
  3. Step 3: Cross multiply
    136,274.40x = 204,411.60 × 89,035.20
  4. Step 4: Simplify right side
    136,274.40x = 18,199,827,688.32
  5. Step 5: Solve for x
    x = 18,199,827,688.32/136,274.40
  6. Step 6: Final answer
    x = 133,552.80

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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.