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Finding the Fourth Proportional to 141,602.42, 195,407.60 and 77,072.91

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Solution

The fourth proportional to 141,602.42, 195,407.60 and 77,072.91 is: 106,358.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,602.42 : 195,407.60 = 77,072.91 : x
  2. Step 2: Convert to fraction form
    141,602.42/195,407.60 = 77,072.91/x
  3. Step 3: Cross multiply
    141,602.42x = 195,407.60 × 77,072.91
  4. Step 4: Simplify right side
    141,602.42x = 15,060,631,982.75
  5. Step 5: Solve for x
    x = 15,060,631,982.75/141,602.42
  6. Step 6: Final answer
    x = 106,358.58

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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.