Home / 97,719.80-146,579.70-87,222.20

Finding the Fourth Proportional to 97,719.80, 146,579.70 and 87,222.20

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Solution

The fourth proportional to 97,719.80, 146,579.70 and 87,222.20 is: 130,833.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,719.80 : 146,579.70 = 87,222.20 : x
  2. Step 2: Convert to fraction form
    97,719.80/146,579.70 = 87,222.20/x
  3. Step 3: Cross multiply
    97,719.80x = 146,579.70 × 87,222.20
  4. Step 4: Simplify right side
    97,719.80x = 12,785,003,909.34
  5. Step 5: Solve for x
    x = 12,785,003,909.34/97,719.80
  6. Step 6: Final answer
    x = 130,833.30

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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.