Home / 239,721.15-359,487.77-89,879.76

Finding the Fourth Proportional to 239,721.15, 359,487.77 and 89,879.76

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Solution

The fourth proportional to 239,721.15, 359,487.77 and 89,879.76 is: 134,784.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,721.15 : 359,487.77 = 89,879.76 : x
  2. Step 2: Convert to fraction form
    239,721.15/359,487.77 = 89,879.76/x
  3. Step 3: Cross multiply
    239,721.15x = 359,487.77 × 89,879.76
  4. Step 4: Simplify right side
    239,721.15x = 32,310,674,041.14
  5. Step 5: Solve for x
    x = 32,310,674,041.14/239,721.15
  6. Step 6: Final answer
    x = 134,784.41

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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.