Home / 212,430.72-318,499.20-94,037.76

Finding the Fourth Proportional to 212,430.72, 318,499.20 and 94,037.76

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Solution

The fourth proportional to 212,430.72, 318,499.20 and 94,037.76 is: 140,991.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,430.72 : 318,499.20 = 94,037.76 : x
  2. Step 2: Convert to fraction form
    212,430.72/318,499.20 = 94,037.76/x
  3. Step 3: Cross multiply
    212,430.72x = 318,499.20 × 94,037.76
  4. Step 4: Simplify right side
    212,430.72x = 29,950,951,329.79
  5. Step 5: Solve for x
    x = 29,950,951,329.79/212,430.72
  6. Step 6: Final answer
    x = 140,991.62

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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.