Home / 141,643.25-195,466.65-77,979.68

Finding the Fourth Proportional to 141,643.25, 195,466.65 and 77,979.68

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Solution

The fourth proportional to 141,643.25, 195,466.65 and 77,979.68 is: 107,611.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,643.25 : 195,466.65 = 77,979.68 : x
  2. Step 2: Convert to fraction form
    141,643.25/195,466.65 = 77,979.68/x
  3. Step 3: Cross multiply
    141,643.25x = 195,466.65 × 77,979.68
  4. Step 4: Simplify right side
    141,643.25x = 15,242,425,840.34
  5. Step 5: Solve for x
    x = 15,242,425,840.34/141,643.25
  6. Step 6: Final answer
    x = 107,611.39

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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.