Home / 146,419.38-219,399.27-87,222.66

Finding the Fourth Proportional to 146,419.38, 219,399.27 and 87,222.66

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Solution

The fourth proportional to 146,419.38, 219,399.27 and 87,222.66 is: 130,697.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,419.38 : 219,399.27 = 87,222.66 : x
  2. Step 2: Convert to fraction form
    146,419.38/219,399.27 = 87,222.66/x
  3. Step 3: Cross multiply
    146,419.38x = 219,399.27 × 87,222.66
  4. Step 4: Simplify right side
    146,419.38x = 19,136,587,931.46
  5. Step 5: Solve for x
    x = 19,136,587,931.46/146,419.38
  6. Step 6: Final answer
    x = 130,697.10

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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.