Home / 137,186.40-205,818.56-43,699.36

Finding the Fourth Proportional to 137,186.40, 205,818.56 and 43,699.36

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Solution

The fourth proportional to 137,186.40, 205,818.56 and 43,699.36 is: 65,561.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,186.40 : 205,818.56 = 43,699.36 : x
  2. Step 2: Convert to fraction form
    137,186.40/205,818.56 = 43,699.36/x
  3. Step 3: Cross multiply
    137,186.40x = 205,818.56 × 43,699.36
  4. Step 4: Simplify right side
    137,186.40x = 8,994,139,348.12
  5. Step 5: Solve for x
    x = 8,994,139,348.12/137,186.40
  6. Step 6: Final answer
    x = 65,561.45

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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.