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Finding the Fourth Proportional to 146,638.76, 202,361.36 and 79,570.76

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Solution

The fourth proportional to 146,638.76, 202,361.36 and 79,570.76 is: 109,807.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,638.76 : 202,361.36 = 79,570.76 : x
  2. Step 2: Convert to fraction form
    146,638.76/202,361.36 = 79,570.76/x
  3. Step 3: Cross multiply
    146,638.76x = 202,361.36 × 79,570.76
  4. Step 4: Simplify right side
    146,638.76x = 16,102,045,800.17
  5. Step 5: Solve for x
    x = 16,102,045,800.17/146,638.76
  6. Step 6: Final answer
    x = 109,807.57

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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.