Home / 432,579.80-648,931.80-133,085.54

Finding the Fourth Proportional to 432,579.80, 648,931.80 and 133,085.54

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Solution

The fourth proportional to 432,579.80, 648,931.80 and 133,085.54 is: 199,647.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,579.80 : 648,931.80 = 133,085.54 : x
  2. Step 2: Convert to fraction form
    432,579.80/648,931.80 = 133,085.54/x
  3. Step 3: Cross multiply
    432,579.80x = 648,931.80 × 133,085.54
  4. Step 4: Simplify right side
    432,579.80x = 86,363,439,026.17
  5. Step 5: Solve for x
    x = 86,363,439,026.17/432,579.80
  6. Step 6: Final answer
    x = 199,647.42

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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.