Home / 103,429.36-142,732.40-58,717.36

Finding the Fourth Proportional to 103,429.36, 142,732.40 and 58,717.36

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Solution

The fourth proportional to 103,429.36, 142,732.40 and 58,717.36 is: 81,029.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,429.36 : 142,732.40 = 58,717.36 : x
  2. Step 2: Convert to fraction form
    103,429.36/142,732.40 = 58,717.36/x
  3. Step 3: Cross multiply
    103,429.36x = 142,732.40 × 58,717.36
  4. Step 4: Simplify right side
    103,429.36x = 8,380,869,714.46
  5. Step 5: Solve for x
    x = 8,380,869,714.46/103,429.36
  6. Step 6: Final answer
    x = 81,029.89

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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.