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Finding the Fourth Proportional to 141,482.63, 195,241.91 and 77,820.41

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Solution

The fourth proportional to 141,482.63, 195,241.91 and 77,820.41 is: 107,389.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,482.63 : 195,241.91 = 77,820.41 : x
  2. Step 2: Convert to fraction form
    141,482.63/195,241.91 = 77,820.41/x
  3. Step 3: Cross multiply
    141,482.63x = 195,241.91 × 77,820.41
  4. Step 4: Simplify right side
    141,482.63x = 15,193,805,485.38
  5. Step 5: Solve for x
    x = 15,193,805,485.38/141,482.63
  6. Step 6: Final answer
    x = 107,389.90

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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.