Home / 102,134.67-140,954.36-56,821.19

Finding the Fourth Proportional to 102,134.67, 140,954.36 and 56,821.19

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Solution

The fourth proportional to 102,134.67, 140,954.36 and 56,821.19 is: 78,417.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,134.67 : 140,954.36 = 56,821.19 : x
  2. Step 2: Convert to fraction form
    102,134.67/140,954.36 = 56,821.19/x
  3. Step 3: Cross multiply
    102,134.67x = 140,954.36 × 56,821.19
  4. Step 4: Simplify right side
    102,134.67x = 8,009,194,470.89
  5. Step 5: Solve for x
    x = 8,009,194,470.89/102,134.67
  6. Step 6: Final answer
    x = 78,417.98

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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.