Home / 145,982.79-219,224.34-90,153.27

Finding the Fourth Proportional to 145,982.79, 219,224.34 and 90,153.27

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Solution

The fourth proportional to 145,982.79, 219,224.34 and 90,153.27 is: 135,384.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,982.79 : 219,224.34 = 90,153.27 : x
  2. Step 2: Convert to fraction form
    145,982.79/219,224.34 = 90,153.27/x
  3. Step 3: Cross multiply
    145,982.79x = 219,224.34 × 90,153.27
  4. Step 4: Simplify right side
    145,982.79x = 19,763,791,114.59
  5. Step 5: Solve for x
    x = 19,763,791,114.59/145,982.79
  6. Step 6: Final answer
    x = 135,384.39

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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.