Home / 145,745.32-218,618.02-112,513.90

Finding the Fourth Proportional to 145,745.32, 218,618.02 and 112,513.90

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Solution

The fourth proportional to 145,745.32, 218,618.02 and 112,513.90 is: 168,770.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,745.32 : 218,618.02 = 112,513.90 : x
  2. Step 2: Convert to fraction form
    145,745.32/218,618.02 = 112,513.90/x
  3. Step 3: Cross multiply
    145,745.32x = 218,618.02 × 112,513.90
  4. Step 4: Simplify right side
    145,745.32x = 24,597,566,040.48
  5. Step 5: Solve for x
    x = 24,597,566,040.48/145,745.32
  6. Step 6: Final answer
    x = 168,770.88

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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.