Home / 518,193.07-777,182.37-139,023.92

Finding the Fourth Proportional to 518,193.07, 777,182.37 and 139,023.92

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Solution

The fourth proportional to 518,193.07, 777,182.37 and 139,023.92 is: 208,507.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,193.07 : 777,182.37 = 139,023.92 : x
  2. Step 2: Convert to fraction form
    518,193.07/777,182.37 = 139,023.92/x
  3. Step 3: Cross multiply
    518,193.07x = 777,182.37 × 139,023.92
  4. Step 4: Simplify right side
    518,193.07x = 108,046,939,632.29
  5. Step 5: Solve for x
    x = 108,046,939,632.29/518,193.07
  6. Step 6: Final answer
    x = 208,507.11

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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.