Home / 147,667.70-221,610.90-97,731.20

Finding the Fourth Proportional to 147,667.70, 221,610.90 and 97,731.20

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Solution

The fourth proportional to 147,667.70, 221,610.90 and 97,731.20 is: 146,669.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,667.70 : 221,610.90 = 97,731.20 : x
  2. Step 2: Convert to fraction form
    147,667.70/221,610.90 = 97,731.20/x
  3. Step 3: Cross multiply
    147,667.70x = 221,610.90 × 97,731.20
  4. Step 4: Simplify right side
    147,667.70x = 21,658,299,190.08
  5. Step 5: Solve for x
    x = 21,658,299,190.08/147,667.70
  6. Step 6: Final answer
    x = 146,669.17

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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.