Home / 155,519.18-214,623.48-87,559.53

Finding the Fourth Proportional to 155,519.18, 214,623.48 and 87,559.53

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Solution

The fourth proportional to 155,519.18, 214,623.48 and 87,559.53 is: 120,836.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,519.18 : 214,623.48 = 87,559.53 : x
  2. Step 2: Convert to fraction form
    155,519.18/214,623.48 = 87,559.53/x
  3. Step 3: Cross multiply
    155,519.18x = 214,623.48 × 87,559.53
  4. Step 4: Simplify right side
    155,519.18x = 18,792,331,035.76
  5. Step 5: Solve for x
    x = 18,792,331,035.76/155,519.18
  6. Step 6: Final answer
    x = 120,836.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.