Home / 102,336.48-141,242.40-76,623.84

Finding the Fourth Proportional to 102,336.48, 141,242.40 and 76,623.84

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Solution

The fourth proportional to 102,336.48, 141,242.40 and 76,623.84 is: 105,754.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,336.48 : 141,242.40 = 76,623.84 : x
  2. Step 2: Convert to fraction form
    102,336.48/141,242.40 = 76,623.84/x
  3. Step 3: Cross multiply
    102,336.48x = 141,242.40 × 76,623.84
  4. Step 4: Simplify right side
    102,336.48x = 10,822,535,058.82
  5. Step 5: Solve for x
    x = 10,822,535,058.82/102,336.48
  6. Step 6: Final answer
    x = 105,754.42

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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.