Home / 519,180.18-778,733.37-140,122.51

Finding the Fourth Proportional to 519,180.18, 778,733.37 and 140,122.51

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Solution

The fourth proportional to 519,180.18, 778,733.37 and 140,122.51 is: 210,173.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,180.18 : 778,733.37 = 140,122.51 : x
  2. Step 2: Convert to fraction form
    519,180.18/778,733.37 = 140,122.51/x
  3. Step 3: Cross multiply
    519,180.18x = 778,733.37 × 140,122.51
  4. Step 4: Simplify right side
    519,180.18x = 109,118,072,084.23
  5. Step 5: Solve for x
    x = 109,118,072,084.23/519,180.18
  6. Step 6: Final answer
    x = 210,173.80

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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.