Home / 141,720.34-195,582.94-78,058.12

Finding the Fourth Proportional to 141,720.34, 195,582.94 and 78,058.12

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Solution

The fourth proportional to 141,720.34, 195,582.94 and 78,058.12 is: 107,725.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,720.34 : 195,582.94 = 78,058.12 : x
  2. Step 2: Convert to fraction form
    141,720.34/195,582.94 = 78,058.12/x
  3. Step 3: Cross multiply
    141,720.34x = 195,582.94 × 78,058.12
  4. Step 4: Simplify right side
    141,720.34x = 15,266,836,600.47
  5. Step 5: Solve for x
    x = 15,266,836,600.47/141,720.34
  6. Step 6: Final answer
    x = 107,725.09

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1.5x scale

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.