Home / 131,215.10-196,621.05-97,778.30

Finding the Fourth Proportional to 131,215.10, 196,621.05 and 97,778.30

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Solution

The fourth proportional to 131,215.10, 196,621.05 and 97,778.30 is: 146,517.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,215.10 : 196,621.05 = 97,778.30 : x
  2. Step 2: Convert to fraction form
    131,215.10/196,621.05 = 97,778.30/x
  3. Step 3: Cross multiply
    131,215.10x = 196,621.05 × 97,778.30
  4. Step 4: Simplify right side
    131,215.10x = 19,225,272,013.22
  5. Step 5: Solve for x
    x = 19,225,272,013.22/131,215.10
  6. Step 6: Final answer
    x = 146,517.22

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1.5x scale

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.