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Finding the Fourth Proportional to 141,483.42, 195,239.88 and 77,808.96

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Solution

The fourth proportional to 141,483.42, 195,239.88 and 77,808.96 is: 107,372.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,483.42 : 195,239.88 = 77,808.96 : x
  2. Step 2: Convert to fraction form
    141,483.42/195,239.88 = 77,808.96/x
  3. Step 3: Cross multiply
    141,483.42x = 195,239.88 × 77,808.96
  4. Step 4: Simplify right side
    141,483.42x = 15,191,412,013.32
  5. Step 5: Solve for x
    x = 15,191,412,013.32/141,483.42
  6. Step 6: Final answer
    x = 107,372.38

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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.