Home / 141,232.80-211,741.20-71,162.40

Finding the Fourth Proportional to 141,232.80, 211,741.20 and 71,162.40

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Solution

The fourth proportional to 141,232.80, 211,741.20 and 71,162.40 is: 106,689.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,232.80 : 211,741.20 = 71,162.40 : x
  2. Step 2: Convert to fraction form
    141,232.80/211,741.20 = 71,162.40/x
  3. Step 3: Cross multiply
    141,232.80x = 211,741.20 × 71,162.40
  4. Step 4: Simplify right side
    141,232.80x = 15,068,011,970.88
  5. Step 5: Solve for x
    x = 15,068,011,970.88/141,232.80
  6. Step 6: Final answer
    x = 106,689.18

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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.