Home / 97,638.10-146,133.15-70,908.10

Finding the Fourth Proportional to 97,638.10, 146,133.15 and 70,908.10

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Solution

The fourth proportional to 97,638.10, 146,133.15 and 70,908.10 is: 106,126.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,638.10 : 146,133.15 = 70,908.10 : x
  2. Step 2: Convert to fraction form
    97,638.10/146,133.15 = 70,908.10/x
  3. Step 3: Cross multiply
    97,638.10x = 146,133.15 × 70,908.10
  4. Step 4: Simplify right side
    97,638.10x = 10,362,024,013.52
  5. Step 5: Solve for x
    x = 10,362,024,013.52/97,638.10
  6. Step 6: Final answer
    x = 106,126.85

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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.