Home / 141,693.84-195,539.94-78,031.08

Finding the Fourth Proportional to 141,693.84, 195,539.94 and 78,031.08

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Solution

The fourth proportional to 141,693.84, 195,539.94 and 78,031.08 is: 107,684.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,693.84 : 195,539.94 = 78,031.08 : x
  2. Step 2: Convert to fraction form
    141,693.84/195,539.94 = 78,031.08/x
  3. Step 3: Cross multiply
    141,693.84x = 195,539.94 × 78,031.08
  4. Step 4: Simplify right side
    141,693.84x = 15,258,192,701.34
  5. Step 5: Solve for x
    x = 15,258,192,701.34/141,693.84
  6. Step 6: Final answer
    x = 107,684.23

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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.