Home / 141,724.40-212,400.48-66,742.88

Finding the Fourth Proportional to 141,724.40, 212,400.48 and 66,742.88

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Solution

The fourth proportional to 141,724.40, 212,400.48 and 66,742.88 is: 100,026.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,724.40 : 212,400.48 = 66,742.88 : x
  2. Step 2: Convert to fraction form
    141,724.40/212,400.48 = 66,742.88/x
  3. Step 3: Cross multiply
    141,724.40x = 212,400.48 × 66,742.88
  4. Step 4: Simplify right side
    141,724.40x = 14,176,219,748.58
  5. Step 5: Solve for x
    x = 14,176,219,748.58/141,724.40
  6. Step 6: Final answer
    x = 100,026.67

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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.