Home / 102,395.65-141,306.64-57,076.50

Finding the Fourth Proportional to 102,395.65, 141,306.64 and 57,076.50

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Solution

The fourth proportional to 102,395.65, 141,306.64 and 57,076.50 is: 78,765.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,395.65 : 141,306.64 = 57,076.50 : x
  2. Step 2: Convert to fraction form
    102,395.65/141,306.64 = 57,076.50/x
  3. Step 3: Cross multiply
    102,395.65x = 141,306.64 × 57,076.50
  4. Step 4: Simplify right side
    102,395.65x = 8,065,288,437.96
  5. Step 5: Solve for x
    x = 8,065,288,437.96/102,395.65
  6. Step 6: Final answer
    x = 78,765.93

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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.