Home / 145,817.88-218,719.53-57,087.65

Finding the Fourth Proportional to 145,817.88, 218,719.53 and 57,087.65

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Solution

The fourth proportional to 145,817.88, 218,719.53 and 57,087.65 is: 85,628.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,817.88 : 218,719.53 = 57,087.65 : x
  2. Step 2: Convert to fraction form
    145,817.88/218,719.53 = 57,087.65/x
  3. Step 3: Cross multiply
    145,817.88x = 218,719.53 × 57,087.65
  4. Step 4: Simplify right side
    145,817.88x = 12,486,182,883.21
  5. Step 5: Solve for x
    x = 12,486,182,883.21/145,817.88
  6. Step 6: Final answer
    x = 85,628.61

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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.