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Finding the Fourth Proportional to 101,262.32, 151,893.40 and 79,042.40

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Solution

The fourth proportional to 101,262.32, 151,893.40 and 79,042.40 is: 118,563.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,262.32 : 151,893.40 = 79,042.40 : x
  2. Step 2: Convert to fraction form
    101,262.32/151,893.40 = 79,042.40/x
  3. Step 3: Cross multiply
    101,262.32x = 151,893.40 × 79,042.40
  4. Step 4: Simplify right side
    101,262.32x = 12,006,018,880.16
  5. Step 5: Solve for x
    x = 12,006,018,880.16/101,262.32
  6. Step 6: Final answer
    x = 118,563.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.