Home / 142,418.13-213,438.57-75,714.63

Finding the Fourth Proportional to 142,418.13, 213,438.57 and 75,714.63

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Solution

The fourth proportional to 142,418.13, 213,438.57 and 75,714.63 is: 113,471.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,418.13 : 213,438.57 = 75,714.63 : x
  2. Step 2: Convert to fraction form
    142,418.13/213,438.57 = 75,714.63/x
  3. Step 3: Cross multiply
    142,418.13x = 213,438.57 × 75,714.63
  4. Step 4: Simplify right side
    142,418.13x = 16,160,422,355.28
  5. Step 5: Solve for x
    x = 16,160,422,355.28/142,418.13
  6. Step 6: Final answer
    x = 113,471.67

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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.