Home / 159,381.36-219,872.40-102,810.96

Finding the Fourth Proportional to 159,381.36, 219,872.40 and 102,810.96

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Solution

The fourth proportional to 159,381.36, 219,872.40 and 102,810.96 is: 141,831.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,381.36 : 219,872.40 = 102,810.96 : x
  2. Step 2: Convert to fraction form
    159,381.36/219,872.40 = 102,810.96/x
  3. Step 3: Cross multiply
    159,381.36x = 219,872.40 × 102,810.96
  4. Step 4: Simplify right side
    159,381.36x = 22,605,292,521.50
  5. Step 5: Solve for x
    x = 22,605,292,521.50/159,381.36
  6. Step 6: Final answer
    x = 141,831.47

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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.