Home / 141,693.50-195,534.06-78,031.82

Finding the Fourth Proportional to 141,693.50, 195,534.06 and 78,031.82

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Solution

The fourth proportional to 141,693.50, 195,534.06 and 78,031.82 is: 107,682.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,693.50 : 195,534.06 = 78,031.82 : x
  2. Step 2: Convert to fraction form
    141,693.50/195,534.06 = 78,031.82/x
  3. Step 3: Cross multiply
    141,693.50x = 195,534.06 × 78,031.82
  4. Step 4: Simplify right side
    141,693.50x = 15,257,878,573.79
  5. Step 5: Solve for x
    x = 15,257,878,573.79/141,693.50
  6. Step 6: Final answer
    x = 107,682.28

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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.