Home / 137,740.10-206,573.70-42,970.10

Finding the Fourth Proportional to 137,740.10, 206,573.70 and 42,970.10

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Solution

The fourth proportional to 137,740.10, 206,573.70 and 42,970.10 is: 64,443.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,740.10 : 206,573.70 = 42,970.10 : x
  2. Step 2: Convert to fraction form
    137,740.10/206,573.70 = 42,970.10/x
  3. Step 3: Cross multiply
    137,740.10x = 206,573.70 × 42,970.10
  4. Step 4: Simplify right side
    137,740.10x = 8,876,492,546.37
  5. Step 5: Solve for x
    x = 8,876,492,546.37/137,740.10
  6. Step 6: Final answer
    x = 64,443.78

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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.