Home / 103,712.54-143,125.80-58,392.02

Finding the Fourth Proportional to 103,712.54, 143,125.80 and 58,392.02

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Solution

The fourth proportional to 103,712.54, 143,125.80 and 58,392.02 is: 80,582.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,712.54 : 143,125.80 = 58,392.02 : x
  2. Step 2: Convert to fraction form
    103,712.54/143,125.80 = 58,392.02/x
  3. Step 3: Cross multiply
    103,712.54x = 143,125.80 × 58,392.02
  4. Step 4: Simplify right side
    103,712.54x = 8,357,404,576.12
  5. Step 5: Solve for x
    x = 8,357,404,576.12/103,712.54
  6. Step 6: Final answer
    x = 80,582.39

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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.