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Finding the Fourth Proportional to 141,885.60, 212,536.80 and 71,804.40

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Solution

The fourth proportional to 141,885.60, 212,536.80 and 71,804.40 is: 107,559.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,885.60 : 212,536.80 = 71,804.40 : x
  2. Step 2: Convert to fraction form
    141,885.60/212,536.80 = 71,804.40/x
  3. Step 3: Cross multiply
    141,885.60x = 212,536.80 × 71,804.40
  4. Step 4: Simplify right side
    141,885.60x = 15,261,077,401.92
  5. Step 5: Solve for x
    x = 15,261,077,401.92/141,885.60
  6. Step 6: Final answer
    x = 107,559.03

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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.