Home / 138,701.56-208,118.16-96,072.54

Finding the Fourth Proportional to 138,701.56, 208,118.16 and 96,072.54

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Solution

The fourth proportional to 138,701.56, 208,118.16 and 96,072.54 is: 144,154.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,701.56 : 208,118.16 = 96,072.54 : x
  2. Step 2: Convert to fraction form
    138,701.56/208,118.16 = 96,072.54/x
  3. Step 3: Cross multiply
    138,701.56x = 208,118.16 × 96,072.54
  4. Step 4: Simplify right side
    138,701.56x = 19,994,440,011.15
  5. Step 5: Solve for x
    x = 19,994,440,011.15/138,701.56
  6. Step 6: Final answer
    x = 144,154.40

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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.