Home / 140,899.16-194,439.96-77,239.64

Finding the Fourth Proportional to 140,899.16, 194,439.96 and 77,239.64

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Solution

The fourth proportional to 140,899.16, 194,439.96 and 77,239.64 is: 106,590.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,899.16 : 194,439.96 = 77,239.64 : x
  2. Step 2: Convert to fraction form
    140,899.16/194,439.96 = 77,239.64/x
  3. Step 3: Cross multiply
    140,899.16x = 194,439.96 × 77,239.64
  4. Step 4: Simplify right side
    140,899.16x = 15,018,472,512.01
  5. Step 5: Solve for x
    x = 15,018,472,512.01/140,899.16
  6. Step 6: Final answer
    x = 106,590.22

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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.