Home / 141,819.60-212,729.40-57,620.10

Finding the Fourth Proportional to 141,819.60, 212,729.40 and 57,620.10

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Solution

The fourth proportional to 141,819.60, 212,729.40 and 57,620.10 is: 86,430.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,819.60 : 212,729.40 = 57,620.10 : x
  2. Step 2: Convert to fraction form
    141,819.60/212,729.40 = 57,620.10/x
  3. Step 3: Cross multiply
    141,819.60x = 212,729.40 × 57,620.10
  4. Step 4: Simplify right side
    141,819.60x = 12,257,489,300.94
  5. Step 5: Solve for x
    x = 12,257,489,300.94/141,819.60
  6. Step 6: Final answer
    x = 86,430.15

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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.