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Finding the Fourth Proportional to 136,802.80, 205,203.30 and 36,972.96

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Solution

The fourth proportional to 136,802.80, 205,203.30 and 36,972.96 is: 55,459.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,802.80 : 205,203.30 = 36,972.96 : x
  2. Step 2: Convert to fraction form
    136,802.80/205,203.30 = 36,972.96/x
  3. Step 3: Cross multiply
    136,802.80x = 205,203.30 × 36,972.96
  4. Step 4: Simplify right side
    136,802.80x = 7,586,973,402.77
  5. Step 5: Solve for x
    x = 7,586,973,402.77/136,802.80
  6. Step 6: Final answer
    x = 55,459.20

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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.