Home / 99,765.37-137,699.85-57,348.55

Finding the Fourth Proportional to 99,765.37, 137,699.85 and 57,348.55

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Solution

The fourth proportional to 99,765.37, 137,699.85 and 57,348.55 is: 79,154.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,765.37 : 137,699.85 = 57,348.55 : x
  2. Step 2: Convert to fraction form
    99,765.37/137,699.85 = 57,348.55/x
  3. Step 3: Cross multiply
    99,765.37x = 137,699.85 × 57,348.55
  4. Step 4: Simplify right side
    99,765.37x = 7,896,886,732.72
  5. Step 5: Solve for x
    x = 7,896,886,732.72/99,765.37
  6. Step 6: Final answer
    x = 79,154.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.