Home / 145,418.18-218,129.99-45,576.15

Finding the Fourth Proportional to 145,418.18, 218,129.99 and 45,576.15

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Solution

The fourth proportional to 145,418.18, 218,129.99 and 45,576.15 is: 68,365.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,418.18 : 218,129.99 = 45,576.15 : x
  2. Step 2: Convert to fraction form
    145,418.18/218,129.99 = 45,576.15/x
  3. Step 3: Cross multiply
    145,418.18x = 218,129.99 × 45,576.15
  4. Step 4: Simplify right side
    145,418.18x = 9,941,524,915.86
  5. Step 5: Solve for x
    x = 9,941,524,915.86/145,418.18
  6. Step 6: Final answer
    x = 68,365.08

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1.5x scale

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.