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Finding the Fourth Proportional to 137,557.20, 206,335.80 and 118,530.30

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Solution

The fourth proportional to 137,557.20, 206,335.80 and 118,530.30 is: 177,795.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,557.20 : 206,335.80 = 118,530.30 : x
  2. Step 2: Convert to fraction form
    137,557.20/206,335.80 = 118,530.30/x
  3. Step 3: Cross multiply
    137,557.20x = 206,335.80 × 118,530.30
  4. Step 4: Simplify right side
    137,557.20x = 24,457,044,274.74
  5. Step 5: Solve for x
    x = 24,457,044,274.74/137,557.20
  6. Step 6: Final answer
    x = 177,795.45

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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.