Home / 147,833.10-221,421.60-121,589.10

Finding the Fourth Proportional to 147,833.10, 221,421.60 and 121,589.10

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Solution

The fourth proportional to 147,833.10, 221,421.60 and 121,589.10 is: 182,113.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,833.10 : 221,421.60 = 121,589.10 : x
  2. Step 2: Convert to fraction form
    147,833.10/221,421.60 = 121,589.10/x
  3. Step 3: Cross multiply
    147,833.10x = 221,421.60 × 121,589.10
  4. Step 4: Simplify right side
    147,833.10x = 26,922,453,064.56
  5. Step 5: Solve for x
    x = 26,922,453,064.56/147,833.10
  6. Step 6: Final answer
    x = 182,113.84

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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.