Home / 102,218.40-141,065.40-56,898.36

Finding the Fourth Proportional to 102,218.40, 141,065.40 and 56,898.36

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Solution

The fourth proportional to 102,218.40, 141,065.40 and 56,898.36 is: 78,521.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,218.40 : 141,065.40 = 56,898.36 : x
  2. Step 2: Convert to fraction form
    102,218.40/141,065.40 = 56,898.36/x
  3. Step 3: Cross multiply
    102,218.40x = 141,065.40 × 56,898.36
  4. Step 4: Simplify right side
    102,218.40x = 8,026,389,912.74
  5. Step 5: Solve for x
    x = 8,026,389,912.74/102,218.40
  6. Step 6: Final answer
    x = 78,521.97

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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.