Home / 102,870.73-141,955.89-57,539.96

Finding the Fourth Proportional to 102,870.73, 141,955.89 and 57,539.96

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Solution

The fourth proportional to 102,870.73, 141,955.89 and 57,539.96 is: 79,401.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,870.73 : 141,955.89 = 57,539.96 : x
  2. Step 2: Convert to fraction form
    102,870.73/141,955.89 = 57,539.96/x
  3. Step 3: Cross multiply
    102,870.73x = 141,955.89 × 57,539.96
  4. Step 4: Simplify right side
    102,870.73x = 8,168,135,963.18
  5. Step 5: Solve for x
    x = 8,168,135,963.18/102,870.73
  6. Step 6: Final answer
    x = 79,401.94

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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.